Hypotriorchis 
Hypotriorchis (M-pot-ri-6r'kis), n. [NL., < Gr. 
virorpiopxr/f, a kind of broad-winged hawk, < inr6, 
under, + rpi6pxis, a kind of hawk, prob. the 
buzzard, < rptopxK, with three testicles, < Tpeif 
(rpc-), = E. three, + opx'f, a testicle.] A genus 
of true falcons, of the subfamily Falconinw, of 
small size, represented by such species as the 
European hobby (H. subbuteo) and merlin (H. 
atsalon), and the American pigeon-hawk (H. co- 
lunibarius): now commonly rated as a subgenus 
of Falco. Sole, 1826. 
hypotrochoid (hl-pot'ro-koid), n. [< Gr. vn6, 
under, + E. trochoid.] A curve which can be 
traced by a point rigidly connected with a cir- 
cle which rolls upon the interior of another 
circle. 
This curve [one described by a gyroscopic pendulum] 
. . . is a species of hypotrochoid. Eiicyc. Bnt., XI. 353. 
hypotympanic (hi*po-tim-pan'ik), a. and n. 
[\ Gr. inr6, under, + rvfiiravav, a kettledrum : 
see tympanum.] I. a. Situated beneath the 
tympanum : as, the hypotympanic bone. 
II. n. The so-called tympanic bone, as of 
birds and reptiles, commonly called the quad- 
rate or os quadratum,-whieh in many vertebrates 
below mammals forms the suspensorium of the 
lower jaw. Correlated with epitympanic. See 
quadrate, n. See cuts at Crotalus and Gallince. 
hypptypic (hi-po-tip'ik), a. [< Gr. im6, under, 
+ TVTrof, type.] Subtypical; not quite typical: 
opposed to hypertypic. 
hypotypical (hi-po-tip'i-kal), a. [< hypotypie 
+ -al.] Same as hypotypic. 
hypotyposis (hi"p6-ti-p6'sis), n. [NL., < Gr. 
vTtoTviruoif, a sketch, outline, < imorvirovv, form 
slightly, sketch out, < irrr6, under, + r/'irof, im- 
pression, type.] 1. In rhet., vivid description 
of a scene or an event, as though it were present 
before the eyes of the audience ; an oratorical 
word-picture. 2. A sketch or outline of a sci- 
ence The Hypotyposes, the title of the exposition 
of the Pyrrhonian philosophy by Sextus Empiricus. 
hypoxanthic (hi-pok-san'thik), a. [< hypoxan- 
th(ine) + -ic.] Derived from or having the 
character of hypoxanthine. 
hypoxanthine (hi-pok-san'thin), n. [< Gr. 
vir6avtiof, yellowish- or lightish-brown (< into, 
under, + l-avQos, yellow), -t- -ine?.] A sub- 
stance (Cgl^N^O) found in the muscles, liver, 
spleen, and other organs, which crystallizes in 
needles and forms compounds with both acids 
and bases. It is also produced during the pu- 
trefaction of proteids. Also called sarcine. 
hypoxid (hi - pok ' sid), n. [< Hypoxis (-id-).] 
A plant of the order Hypoaidaoea, Lindley. 
Hypoxidaceae (hi-pok-si-da'se-e), n. pl. [NL., 
< Hypoxis (-id-) + -acea;.] A former natural 
order of plants, the genera of which are now 
referred to the natural order AmaryllidacetE, 
tribe Hypoxidece. 
Hypoxidese (hi-pok-sid'e-e), n.pl. [NL. (Rob- 
ert Brown), < Hypoxis (-id-) + -ew.] A tribe of 
monocotyledonous plants, of the natural order 
AmarylUdacea;, typified by the genus Hypoxis. 
The rhizome is tuberous or small ; the leaves are radical 
(rarely a few on the stem) ; and the flowers are solitary on 
the scape, or sometimes spiked or racemose, rarely umbel- 
late. 
poxis (hi-pok'sis), n. [NL. (Linnaeus, prop. 
Sypoxys, so called because the pod is acute at 
the base), <Gr. 
i'jrd, under, + 
ofi'f, sharp.] 
A genus of 
plants of the 
natural order 
Amaryllidacece, 
and the type of 
the tribe Hy- 
poxidece. The 
perianth is 6-part- 
ed, and without 
a tube; the 3 
outer segments of 
the perianth are 
slightly herbace- 
ous outside ; the 
stamens are 6 in 
number, and in- 
serted upon a disk 
surrounding the 
ovary, which is 3- 
celled ; and the 
capsule opens by 
They are 
a lid. 
herbaceous plants 
with mostly nar- 
row, sometimes 
grass-like leaves, 
and single or race- 
mose pretty flow- 
ers. About 60 spe- 
Hypoxis ertcta. a, flower ; >, stamen ; 
c t fruit ; rf, same, cut transversely. 
2960 
cies are known, widely distributed, but found mostly in 
the tropics. H. erecta, the star-grass, is a yellow-flowered 
species, a native of the t'nited States. a.decumbens,ot 
the West Indies and Brazil, is called star-of- Bethlehem. 
Hypoxylon (hi-pok'si-lon), n. [NL., < Gr. iird, 
under, + fvAov, wood.] A large genus of as- 
comycetous fungi, having the stroma corky or 
brittle, the perithecia immersed, and the spo- 
ridia ovate or lanceolate, curved, simple, and 
dark-colored. They grow on trees, decaying wood, 
dead branches, etc. H. vernicosum, which is loosely cel- 
lular, is eaten by the natives of Bhutan. 
hypoxylous (hi-pok'si-lus), a. [< Hypoxylon.'} 
Or or pertaining to the genus Hypoxylon. 
hypozeuxis (hi-po-zuk'sis), n. [LL., < Gr. iwo- 
, a subduing, a subordinate connection, < 
, yoke under, subject, < into, under, 
+ fcvyvwai, yoke: see zeugma."} In gram, and 
rhet., a figure or construction in which, in a 
succession of clauses, each subject has its own 
verb: as, "The grass withereth, the flower 
fadeth; but the word of our God shall stand for 
ever," Isa. xl. 8. The following is another ex- 
ample : 
On the slope 
The sword rose, the hind fell, the herd wan driven. 
Fire glimpsed. Tennyson, Coming of Arthur. 
If this supplie be made to sundrie clauses, or to one 
clause sundrie times iterated, and by seuerall words, so as 
euery clause hath his owne supplie, then it is called by 
the Ureekes Jlypozeuxis ; we call him the substitute. 
Puttcnham, Arte of Eng. Poesie, p. 138. 
Hypozoa (hi-po-zo'a), n. pi. [NL., < Gr. wro, 
under, + fi>,' an animal.] In zool., same as 
Protozoa. 
hypozoan (hi-po-zo'an), a. and n. I. a. Per- 
taining to or having" the characters of the Hy- 
pozoa; protozoan. 
II. . One of the Hypozoa ; a protozoan. 
hypozpic 1 (bi-po-zo'ik), a. [< Gr. iiro, under, + 
Cui?, life.] In geol., below the limit of life. 
hypozpic^ (hi-po-zo'ik), a. [< Hypozoa + -ic.] 
In zool., pertaining to the Hypozoa ; hypozoan ; 
protozoan. 
hypped, hyppish. See hipped? .hippish. 
Hypsi bates ( hip-sib 'a-tez), n. [NL., < Gr. as if 
v^f/MrfC, going aloft; cf. i<////3arof, set on high, 
< iV"> on high (see hypso/sis), + /3arof, verbal adj. 
of paiveiv, go, = E. come.] 1. A genus of very 
long-legged grallatorial birds; the stilts. Also 
called Himantopus. Ifitzsch, 1829. 2. A genus 
of reptiles. Originally written Hypsibatus. 
Hypsibrachycephali (hip-si-brak-i-sef'a-H), n. 
pi. [NL. , < Gr. v\jit, on high, aloft (VC> height), 
+ fipax>'f, short, T Kf^o/jy, head.] In ethnol., 
those races of men that are characterized by 
high broad skulls, such as the Malay inhabi- 
tants of Madura. 
hypsibr achy cephalic (hip - si - brak'i - se - f al'ik 
or -sef 'a-lik), a. Having the characters of the 
Hypsibrachycephali. 
hypsibrachycephalism (hip -si -brak - i - sef ' a- 
hzm), n. [Ashypsibrachycephal-ic + -ism.] In 
ethnol., the presence or prevalence of high 
broad skulls. 
hypsicephalic (hip'si-se-fal'ik or -sef'a-lik), 
a. [< Gr. inl>i, on high, + ne<j>a/i/, head.] Sigh, 
as a skull ; exhibiting hypsicephaly. 
hypsicephaly (hip-si-sef'a-li), n. [As hypgice- 
phal-ic + -y.] The character of a skull the 
cranial index of which is over 75. See crani- 
ometry. 
hypsiioid(hip'si-loid),a. [<Gr.t^i/loE%, shaped 
like upsilon, < it ^></tov. upsilon, + cMof, form.] 
Shaped like the Greek letter upsilon; curved 
or arched like U. 
The palatal index of the male ... is exceptionally low, 
viz. 1038, the general form of the palate being remarka- 
bly hypmloid. Anthropological Jour., XVIII. 9. 
Hypsilophodpn (hip-si-lof'o-don), n. [NL., < 
Gr. injn, on high, + /utyoc, crest, ridge, + 6<5oi'f 
(bdovr-) = E. tooth.] A remarkable genus of fos- 
sil Mesozoic dinosaurs, of the group Ornitho- 
scelida, found in the Wealden formation of the 
Isle of Wight, and exhibiting to a high degree 
the characteristics of birds, especially in the 
beak and hind limbs. The ends of the premaxillse 
appear to have been toothless and beak -like, and the man- 
dibular symphysis is excavated to receive them, almost 
as in a parrot ; the ischia are very long and slender, with 
a median ventral symphysis ; the pubic bones are as 
long and slender as in a typical bird, and directed down- 
ward and backward, parallel with the ischia, leaving only 
a very narrow lengthened obturator foramen divided by 
the obturator process. 
hypsilophodont (hip-si-lof 'o-dont), a. Per- 
taining to or having the characters of the ge- 
nus Hypsilopliodon. 
It remains to be seen how far the hypeilophodont modi- 
fication extended among the Ornithoscelida. 
ij, Anat. Vert., p. 225. 
hypsometry 
Hypsilophodontidae (hip-si-lof-o-don'ti-de), n. 
pl. [NL., <. Hypsilophodon(t-) + -id(S.] A fam- 
ily of dinosaurs with four functional digits in 
the hind feet, typified by the genus Hypsilo- 
pluxlini. 
Hypsiprymninae (hip'si-prim-ni'ne), n. pl. 
[NL. , < Hypsiprymntts + -in(B.] A subfamily of 
Macropodidte, typified by the genus Hypsiprym- 
nus; the kangaroo-rats, potoroos, or bettongs. 
It contains small marsupials, about as large as a rabbit, 
differing considerably from the true kangaroos in anatomi- 
cal characters, as well as in general appearance and habits. 
They feed much on roots, which they dig up by means of 
their fore feet, the three middle digits of which are elon- 
gate. Besides Hypsiprymnun, the group includes such 
genera as +Epypryuimie and Bettonyia. 
hypsiprymnine (hip-si-prim'nin), a. Same as 
fyptmryamoid, > 
hypsiprymnoid (hip-si-prim'noid), a. [< ffyp- 
sipry mints + -aid.] Resembling a kangaroo- 
rat ; having the characters of the Hypsiprym- 
nvnce. 
As to the Didelphia, if we may trust the evidence which 
seems to be afforded by their very scanty remains, a true 
Hyptriprymnoid form existed at the epoch of the Trias, 
contemporaneously with a Carnivorous form. 
Huxley, Critiques and Addresses, p. 199. 
Hypsiprymnus (hip-si-prim'uus), n. [NL., < 
Gr. vfiTTpv/fvof, with high stern, < vtyi, on high, 
aloft, + irpit/iva, the stern of a ship, prop. adj. 
(sc. vavf, ship), the hindmost, fern, of n-pv/uvof, 
hindmost, eudmost.] The typical genus of 
Hypgiprymnina:, including the true kangaroo- 
rats orpotoroos, such as H. murinus of New 
South Wales, with a long scaly tail like a rat's, 
produced snout, and long coarse pelage. See 
cut under kangaroo^rat. 
Hypsistarian (hip-sis-ta'ri-an), n. [< Gr. 'K><- 
arapioi, pl., a Christian sect that distinguished 
between 6 inptarof feof, the Most High God, and 
& irarj/p, the Father; < inptaTot;, highest, most 
high, superl. adj., < infi, adv., on high, aloft.] 
One of a monotheistic sect in the fourth cen- 
tury, whose doctrines combined pagan, Jewish, 
and Christian ideas. They were perhaps successors 
of the Sahseans, but worshiped God only under the name 
of the Most High, and regarded flre and light as his spe- 
cial symbols. They were found chiefly in Cappadocia. 
Hypsodon (hip'so-don), n. [NL., < Gr. tyt, on 
high, + bSai'f (6*>vr-) = E. tooth.] 1. A genus 
of fossil fishes of large size, once considered 
to be related to the pikes, with long, pointed, 
and erect teeth. The remains occur in the Cre- 
taceous formation of England. Agassiz. 2. 
[/. c.] A fish of the genus Hypsodon. 
hypsodont (hip 'so- don t), a. [< Gr. tyi, on 
high, + biovs (odovT-) = E. tooth.] Having 
lengthened crowns and short roots, the neck 
remaining long below the alveolar border of 
the socket: applied to such teeth as the molars 
of BovidfE, in distinction from the brachyodont 
dentition of Cervida;. See brachyodont. [The 
epithet has no reference to the ichthyic genus 
Hypsodon. ] 
Modification of [the selenodont form] from a brachyo- 
dont to a hypsodont type. 
W. U. flower, Encyc. Brit, XV. 429. 
hypsography (hip-sog'ra-fi), . [< Gr. tty<, on 
high, aloft, T -ypa<j>ia, < ypa<jteiv, write, describe.] 
See the extract. 
Eidography, ... a word suggested as useful in discuss- 
ing surveys, and having reference solely to the surface 
form of the earth, its ups and downs, its hills and hollows. 
The words hyptography and "topography" are each used 
for this purpose ; but the flrst refers rather to elevation 
than to form, and " topography" has been and is used in 
different senses, hence its meaning is uncertain until de- 
fined by the writer using It Science, XII. 280. 
hypsometer (hip-som'e-ter), n. [< Gr. infx, on 
high, aloft, H- perpov, a measure.] A thermo- 
metrical barometer for measuring altitudes, it 
consists essentially of a delicate thermometer, with which 
the temperature of the boiling-point of water at the given 
height is determined. 
hypsometric (hip-so-met'rik), . [< hypsometer 
+ -ic.] Of or pertaining to hypsometry. 
The accuracy of the barometer as a hypsometric instru- 
ment may be very considerably increased. 
J. D. Whitney, Barometric Hypsometry, Pref. 
hypsometrical (hip-so-met'ri-kal), a. [< Hyp- 
sometric + -al.] Same as hypsometric : as, hyp- 
sometrical maps, which exhibit the heights of 
mountains, etc. 
hypsometrically (hip-so-met'ri-kal-i), adv. Ac- 
cording to the rules and principles of hypsom- 
etry. 
hypsometry (hip-som'e-tri), H. [As hypsometer 
T -y.] The art of measuring the heights of 
places upon the surface of the earth, either by 
leveling, by the barometer, by the thermometer, 
by trigonometrical observations, or otherwise. 
