Hemidactylus 
cies; B.frenatus, the cheecha of Ceylon ; and H. ivrrw- 
culatus, a warty Mediterranean species. 
hemidemisemiqua ver ( hem - i - dem - i - sem - i - 
kwa'ver), n. [< iiemi-, half, + demi-, half, + 
^ m m * semi-, half, + quaver, q. v.] 
g H In musical notation, a note equal 
^ 5* a s-s in duration to one half of a 
demisemiquaver or one eighth of a quaver; a 
sixty-fourth note: written as shown at a. 
Hemidernisemiquaver rest, in iniutical tiotation, 2 
a rest equal in duration to a hemidemisemiquaver ; s ^ 
sixty-fourth rest : written as shown at b. t 
Hernidesmeae (hem-i-des'me-e), . pi. [NL., 
< Hemidesmus + -ece.~\ A subdivision of the 
Asclepiadacea: made by Beichenbaph in 1837 to 
receive the anomalous genus Hemidesmus. 
Hemidesmus (hem-i-des'mus), n. [NL. (so 
called in allusion to the filaments), < Gr. TI/U-, 
half, + 6ca/i6f, a band.] A genus of twining 
plants, natural order Asclepiadacew, having 
opposite leaves and cymes of small greenish 
flowers. H. Indicus yields the Indian sarsapa- 
rilla, a reputed alterative, diuretic, and tome. 
hemidiapente (hem-i-dl-a-pen'te), n. [< Gr. 
i^-, half, + iiaire vrc, a filth in music : see dia- 
pente.'] In Gr. music, a diminished or imper- 
fect fifth. 
hemiditone (hem-i-di'tou), . [< Gr. i)/u-, half, 
+ itTovof, of two tones: see ditone."] In Gr. 
music, a minor third. According to the Greek 
tuning, this was somewhat less than a modern 
minor third, and dissonant. 
hemidiploidion (hem-i-dip-lo-id'i-on), n. ; pi. 
hcmidiplo'idia (-a). [Gr. riyidnrTMiSiov, < fifu-, 
half, T iircfuoiSiav: see diploidion.^ In anc. Gr. 
costume, either a short form of the diploidion 
or one covering* only the front of the person. 
See also quotation. 
A diploidion worn only in front was called a hemiiti- 
ploidion. Encyc. Brit., VI. 454. 
hemidomatic (hem"i-do-mat'ik), a. [< hemi- 
dome + -rtfr'c 2 .] Resembling or pertaining to a 
hemidome. 
hemidome (hern'i-dom), n. [< hemi- + dome : 
see dome 1 , 5.] In crystal., an orthodome in the 
monoclinic system: so called because only two 
planes belong to any given symbol. Correspond- 
ing forms are called minus or plus, according as they are 
opposite the obtuse or the acute axial angle. 
hemidraehm (hem'i-dram), n. [< hemi-, half, 
+ drachm, q. v.] An ancient coin of the value 
of half a drachma ; a half-drachm. 
hemidystrophia (hem"i-dis-tro'fi-a), . [NL., 
< Gr. )/(-, half, + rftxr-, ill, + Tpotyi], nourishment, 
(. rpifyeiv, nourish.] In bot., the partial nourish- 
ment of trees, due to the unequal distribution 
of the roots arising from obstruction to their 
growth in some directions, or from othercauses. 
hemiedric (hem-i-ed'rik), a. Same as hemi- 
hedral. 
hemielytra. . Plural of hemielytrum. 
hemielytral (hem-i-el'i-tral), a. [< hemiclytrum 
+ -ah] Pertaining to or of the nature of a 
hemielytrum. 
hemielytrum, hemielytron (hem-i-el'i-trum, 
-tron),.: pi. hemielytra - (-trft). [NL. , < Gr. yfu-, 
half, + if.vrpov, a sheath, shard: see elytrum.] 
1. The fore wing of hemipterous and especially 
heteropterous insects, coriaceous at the base 
and membranous at the tip, whence the name. 
Besides being thus divisible into two principal parts, the 
hemielytrum proper, or corium, and the terminal mem- 
brana, most hemielytra include two other recognizable 
portions, called the clavus and the cuitewt or appendix. 
The latter is often wanting. See cut under clavus. 
2. In Femes, one of the large imbricated 
scales which lie in double series along the back 
of certain scale-bearing marine annelids, as the 
sea-mice or Aphroditida:. They are borne upon the 
upper parapodia, subserve the purposes of protection and 
respiration, and are often very conspicuous, as in the genus 
Hermione. 
Also hemelytrum, hemelytron. 
hemiencephala, n. Plural of hemiencephalon. 
hemiencephalic (hem'i-en-se-fal'ik or -sef'a- 
lik), a. [< hemierifephalon + -!C.] Pertaining 
to the hemiencephalon. 
hemiencephalon (hem"i-en-sef'a-lon), !.; pi. 
liemiencephala (-la). [< Gr. t}fu-, half, + eyx- 
oa/lof, brain: see encephalon."] Half of an en- 
cephalon which has been hemisected, or longi- 
tudinally bisected. 
Hemigaie (he-mig'a-le), n. [NL., < Gr. %/u-, 
half, + yaAij, contr. form of yater/, a kind of 
weasel.] 1. A genus of carnivorous quad- 
rupeds, of the family Viverridce, the type and 
only representative of a subfamily Hemigalei- 
iue, based upon H. zebra of Borneo. Also writ- 
ten Hemigalea and Hemigaleus. 2. [I. e.] An 
animal of this genus. 
2788 
Hemigaleinae (hem-i-ga-le-i'ne), n. pi. [NL., 
< Hemigaie + -in<e.~] A subfamily of subplan- 
tigrade Viverridce, represented by the genus 
Hemigaie. They have a strong sectorial tooth with a 
large tubercular ledge, the upper molars large and broad, 
the soles partly hairy, and a ringed tail moderate in 
length and not prehensile as in the paradoxures, to which 
these animals are closely related. Usually Hemiyalince. 
hemigamous (he-mig'a-mus), a. [< Gr. >//Jt-, 
half, + }a/#>f, marriage.] In hot., having one 
of the two florets in the same spikelet neuter, 
and the other unisexual, whether male or fe- 
male : said of grasses. 
hemigeometer (hem"i-je-om'e-ter), . [< hemi- 
-r- geometer: see geometer, 3.] In enlom., one 
of certain lepidopterous larvae of the family 
Noctuidce. They have six prolegs, two ventral pairs and 
one anal pair, and when walking raise or loop a part of the 
body, thus somewhat resembling the true geometrids or 
loopworms. 
hemiglottidean (hem*i-glo-tid'e-an), a. In 
ornitli., specifically, of or pertaining to the 
Hemigloltidcs. 
Hemiglottides (hem-i-glot'i-dez), n. pi. [NL., 
< Gr. i//u-, half, -r yAurrra, tongue, + -ides.'] A su- 
perfamily of desmognathous grallatorial birds, 
founded by Nitzsch upon the ibises and spoon- 
bills, associated on account of the small size of 
the tongue and other characters. The group forms 
a part of the Pelargomorphce of Huxley, and it exactly cor- 
responds to the Jbides of Coues. 
I associate in this division [Pt'largoworptue] the Hero- 
dite, Pelargi, and Hemiglottides of Mtzsch, the last group 
including the genera Ibis and Platalea. 
Huxley, Proc. ZooL Soc., 1867, p. 461. 
hemiglyph (hem'i-glif), . [< Gr. j/u-, half, 
+ y'.vtyii, a carving.] In arcJi., the half-groove 
or -glyph at the edge of the triglyph in the Doric 
entablature. 
hemignathous (he-mig'na-thus), a. [< Gr. rifit-, 
half, + yvadof, jaw.] In ornitli., half-beaked 
that is, having either mandible much shorter 
than the other; hemirhamphine. 
Hemignathus (he-mig'na-thus), n. [NL. : see 
Jiemif/nathous.'] A genus of sun-birds, of the 
family Nectariniid<e, of the Sandwich Islands, 
having a bowed bill with the lower mandible 
about naif as long as the upper one (whence the 
name), as H. lucida. Lichtenstein. 1838. 
hemigyrust (hem-i-jl'rus), . [NL., < Gr. fifu-, 
half, + yvpof, a circle.] In bot., same as fol- 
licle. 
hemihedral (hem-i-he'dral), a. [< hemihedron 
+ -/.] 1. In mineral., exhibiting hemihe- 
drism ; having, as a crystal, only half the num- 
ber of planes belonging to any particular form 
which the law of symmetry requires. 2. In 
math., substituting negative for positive signs 
in regular alternation. 
Also hcmihedric, hemiedric. 
hemihedrally (hem-i-he'dral-i), adv. In a hemi- 
hedral manner. 
hemihedric (hem-i-he'drik), a. [As hemihe- 
dron + -ic.~\ Same as hemihedral. 
hemihedrism (hem-i-he'drizm), n. [As hemi- 
hedron + -!/.] In crystal., that property of 
crystals in accordance with which they have 
only half the number of planes required by 
normal or holohedral symmetry. See holohe- 
drism. For example, if of the eight planes of an octahe- 
dron only four are present, the two opposite above and the 
alternates to these below, the resulting form is a tetrahe- 
dron; this, like the complementary bemihedral forms in 
other similar cases, is designated as plus (+) or minus (), 
according to which set of four alternate planes is present. 
Both plus and minus tetrahedrons may be present together, 
and an octahedron of a hemihedral species like sphalerite is 
regarded as made up of these two forms, the two sets of 
planes being unlike physically (for example, as shown by 
pyro-electrical phenomena^ even when not distinguished 
geometrically. In the isometric system the type of hemi- 
hedrism illustrated by the tetrahedron in which all the 
parts belonging to half the octants are present (holohemi- 
kedrul) is called inclined or tetrahedral hemihfdrism; this 
yields independent forms also in the case of the two tris- 
octahedrons and the hexoctahedron. In the same system 
parallel or pyritohedral hemihedrism is illustrated by 
the pentagonal dodecahedron or pyritohedron, the hemi- 
hedral form of the tetrakishexahedron ; in this, half the 
parts of all the octants are present (hemiholohedral). The 
only other independent form of this type of hemihedrism 
is the diploid, the heniihedral form of the hexoctahedron. 
(See cut under diploid.) The other forms, however, also 
show the hemihedrism : thus, a cube of pyrites has only 
its alternate edges similar. There is also the rare gyroi- 
dal or trapezohedral hemihedrism, which, as applied to 
the hexoctahedron, yields plus and minus forms which are 
enantiomorphous. Sphenoidal hemihedrism of the tetrag- 
onal and orthorhombic systems is similar to the tetrahe- 
dral hemihedrism of the isometric system ; this is also true 
of the rhombohedral hemihedrism of the hexagonal pyra- 
mid system, which yields the rhombohedron from a hexag- 
onal pyramid and the scalenohedron from a 12-sided pyra- 
mid. Pyramidal hemihedrism in the tetragonal and hex- 
agonal systems yields a 4-sided or 6-sided pyramid respec- 
tively from an 8-sided or 12-sided pyramid ; here the parts 
hemiolia 
present t.re not those alternate to each other above and 
below, but each plane above has a corresponding one be- 
low, the adjacent pair above and below being absent. 
Hemihedral forms are themselves, in certain cases, sub- 
ject to hemihedrism, the result being quarter- or tetarto- 
hedral forms. See telartohedrism and hemitnorphism. 
Also called hemihedry, hemisymmetry. 
hemihedron (hem-i-he'dron), . [< Gr. $/u-, 
half, + c6pa, a seat, base.] "A hemihedral solid, 
as the tetrahedron. 
hemihedry (hem'i-he-dri), n. [As hemihedron 
+ -w.] Same as hemihedrism. 
hemiholohedral (hem-i-hol-6-he'dral), a. [< 
hemi-, half, + holohedral.'] fn crystal., having 
half the whole number of planes in all the oc- 
tants: sometimes said of the- parallel hemihe- 
dral forms of the isometric system. See hemi- 
Hemileia (hem-i-li'jj), n. [NL., appar. < Gr. ij//i-, 
half, + /feiof, smooth.] A genus of fungi, of 
which the principal species, H. vastatrix, is 
very destructive to coffee-plants in Ceylon 
plantations. The genus is a member of the Undineat, 
and closely allied to Uromyces. It Is described as form- 
ing little white patches on the under side of the leaves, 
and consists of minute tufts of flexuous threads sur- 
mounted by a single subrenif orm spore attached obliquely 
at the base. The upper side of the affected leaf has the 
appearance of being ournt. 
Hemimetabola (hem'i-me-tab'o-la), . pi. 
[NL., < Gr. fifu-, half, + //era/Jo/l#,'tran8forma- 
tion. Cf.hemimetaboty.] Insects which under- 
go incomplete or partial metamorphosis; a sub- 
class or superorder of hexapod insects, includ- 
ing a series intermediate between Ametabola 
on the one hand and Metabola on the other 
The group is sometimes used as conterminous with He 
miptera in a broad sense, and is then divided into He 
miptera, Heteraptera, and Thytanoptera ; or it is ex 
tended to cover the three usual orders Hemiptera, Or 
thoptera, and Pseudoneuroptera. Also called Hmnamor 
pha. 
hemimetabolic (hem - i - met - a - bol ' ik), a. [< 
hemimetaboly + -ic.] Characterized by hemi- 
metaboly; pertaining to hemimetaboly, or to 
the Hemimetabola; hemimetamorphic ; homo- 
morphic. 
hemimetaboly (hem*i-me-tab'o-li), n. [< Gr. 
n/tt-, half, + iieraftoMi, transformation: see me- 
taboly.'] Incomplete metamorphosis; imper- 
fect transformation, as of an insect. 
hemimetamorphic (hem-i-met-a-mdr'fik), a. 
[< hemimctamorph-osis + -ic.] Exhibiting herni- 
metamprphosis; undergoing incomplete trans- 
formation ; hemimetabolic. 
hemimetamor phosi s (hem-i-met-a-mdr'fo- 
sis), w. [< Gr. fim-, half, -f- //fra/udp^iJovf, trans- 
formation.] Incomplete metamorphosis. It in- 
volves considerable although gradual changes 
from the new-born young to the adult, as in some 
fishes. 
In some pelagic forms Hemimetamorphosis may occur, 
or very considerable alterations in their growth and de- 
velopment. 
Day, Fishes of Great Britain and Ireland, II. xcL 
hemimorph (hem'i-morf), n. [< Gr. q/u-, half, 
f /w>p^#, form.] A crystal exhibiting hemi- 
morphism. 
hemimorphic (hem-i-m6r'fik), a. [< hemi- 
morph + -ic."] Having, as a crystal, the two 
ends of the same axis modified with unlike 
planes. 
hemimorphism (hem-i-m6r'fizm), n. [< kemi- 
morph + -ism.~\ In cryshil., the property of 
having the opposite extremities unlike in their 
planes or modifications. It is commonly observed 
in the case of crystals of tourmalin, calamin, and some 
other species. Such crystals usually show marked pyro- 
electrical phenomena. See pyro-electricity. 
hemimorphite (hem-i-mor'fit), n. [< hemi- 
morph + -ite 2 .] Calamin, or hydrous silicate 
of zinc : a name given in allusion to the common 
hemimorphic character of the crystals. 
hemina (he-mi'na), n. ; pi. heminte (-ne). [L., 
also emina', < Gr. "iiuiva, a Sicilian measure, half 
the eia-cif (L. sextarius), < ij/w-. half, qfUGvc, a., 
half.] An ancient Eoman and Greek measure, 
equivalent to the cotyle. It contained .271 
liters, or .572 United States pints. 
heminget, n. See hemming?. 
hemiobplion (heml-d-bo'li-on), n.; pi. hemio- 
bolia (-a). [Gr. >iiuu[l&,u>v, < fifu-, half, + o/3o?.6f, 
an obol.] A coin of ancient Athens, of the 
value of half an obol. 
hemiolia (hem-i-6'li-a). . [< Gr. )J^io/./a, sc. 
fidoraaif, an interval one half more, also a verse 
consisting of a foot and a half, fern, of <?/ii/Uof, 
one and a half: see hemiolic.'] In medieval mu- 
sic: (a) The interval or relation of the perfect 
fifth : so called because produced on the mono- 
chord by shortening the string to two thirds 
of its full length, (b) A group of three notes 
