locomotive 
3500 
to render the latter noiseless. It is frequently combined In bot. goal., and anat., having one or more lo- 
with a passenger-car in one and the same vehicle. _,,i: ' ,,-ii B . i lqpf ] nhipflv in cnmnminfl as 
Switching-locomotive, a freight-locomotive having the '"2 , If-,' , ' 
peculiarities of its class carried to an extreme point, to UMloeular, OlMCUtat , etc. 
adapt it to the heavy work of starting and slowly moving loculate (lok'u-lat), a. [< loculus + -ate 1 .] 
heavy trains in switching at stations. Called in England Havin<* loculi or cells. 
shmttinij-enfiius. Tank-locomotive, a locomotive per- inciilatpd Hnk'n la tedl a {< Inmlntf + e d? ~\ 
manently connected with its tender. Ten- Wheeled 10- lOCUiaTCQ (1CK u-ld-iea;, a. [*. 
comotlve, a locomotive with six coupled driving-wheels bame as loculate. 
and a four-wheeled truck in front of the driving-wheels, locule (lok'ul), it. [< L. loculus, a cell : see locu- 
locomotive-balance (16-ko-m6'tiv-bal"ans), n. IKS.] A loculus or cell. 
The spring used in place of a weight to control loculi, n. Plural of loculus. 
the safety-valve of a locomotive. loculicidal (lok'u-li-si"dal), a. [< L. loculus, a 
locomotive-boiler (16-k6-m6'tiv-boi''ler), n. A 
form of boiler in which the fire-box is connected 
by a number of flues with the smoke-box under 
the chimney : so called because commonly used 
in locomotive engines. 
locomotive-car (16-ko-m6'tiv-kar), n. A loco- 
motive and a railway-carriage combined in one. 
Iocomotiveness(16-ko-m6'tiv-nes), n. Same as 
locomotloity. 
locomotive-pump (16-ko-mo'tiv-pump), n. The 
feed-pump which supplies water to the boiler 
of a locomotive. 
locomotivity (16"ko-mo-tiv'i-ti), n. [= F. loco- 
motivite; as locomotive + -i'iy.~\ The power of 
4 \inLJj lit \_\ -LJ. ll/lstlftHOj a 
cell (see loculus), + cadere, cut.] In bot., de- 
hiscing through the back of the 
loculus or cell of a seed-vessel 
that is, by the dorsal suture of the 
carpel. Compare scpticidal. 
locuiicidally (lok'u-li-si'dal-i), 
adv. In a loculicidal manner. 
Encyc. Brit., IV. 149. 
loculose, loculous (lok'u-los,-lus), 
a. [< L. loculosus, full of little 
cells, < loculus, a cell : see loculus.'] 
In bot., eool., and anat., divided 
by internal partitions into loculi the > opening wlnB 
or cells. 
Loculicidal De- 
hiscence of the 
Fruit of frit ver- 
locomotion ; ability to change place. [Rare.] loculus (lok'u-lus), n.; pi. loculi (-li). [L., a lit- 
tie place, a compartment, box, cell, dim. of 
locus, a place: see locus.] 1. A little place or 
space; a cell; achamberlet; generally, in hot., 
anat., and zool., one of a number of small com- 
partments or cells, separated from one another 
by septa, as in the tests of f oraminif ers ; specifi- 
cally, in corals, one of the spaces between the 
septa of the calcified cup or theca. Specifically, 
in oot. : (a) An anther-cell ; the sac or theca containing the 
pollen. (6) The cell, or one of the cells, in a fruit, in which 
the seed is lodged. Compare locellus. 
2. In ancient catacombs and tombs of some 
types, a small separate chamber or recess, for 
the reception of a body or of an urn, etc. when 
the body had been placed in the loculus the opening was 
The most superb edifice that ever was conceived or con- 
structed would not equal the smallest insect, blest with 
sight, feeling, and locomotimty. Bryan. (Latham.) 
locomotor (16-ko-mo'tor), n. and a. [< NL. loco- 
motor, < L. locus, place, + motor, a mover: see 
locus and motor. Cf. locomotion, locomotive.] I. 
n. One who or that which moves from place to 
place; anything that has or gives the power of 
locomotion. [Rare.] 
If the hue-and-cry were once up, they [kangaroos) would 
show as fair a pair of hind shifters as the expertest loco- 
motors in the colony. Lamb, Elia, p. 182. 
The theory of compensation between electric locomotors 
working upon the same circuit was advanced several years 
ago by Werner Siemens. Elect. Rev. (Eng.), XXIV. 270. 
tion; having the function of locomotion: as, a dean loculus, a puzzie "consisting : ol 'an ivory square~cut 
locomotor organ; a locomotor function Loco- into fourteen pieces, to be put together after having been 
motor ataxia. See ataxia. taken apart. 
locomotorial (16"ko-mo-t6'ri-al), a. [< loco- locum-tenency(16"kum-te'nen-si), . The office 
motory, locoi>iotorium,-\- -al.] 'Of or pertaining or employment of a locum-tenens; the holding 
to the loeomotorium, or to locomotion; loco- of a place by temporary substitution. [Rare.] 
motor. [Rare.] Wanted, by an M. B. and C. M., Edinburgh, an indoor 
lOCOmOtonum (10"ko-mo-to ri-um), n.; pi. loco- assistancy or Locum Tenency. 
motoria (-a). [NL., neut. of locomotorius, loco- Lancet, No. 3410, p. 84 of Adv'ts. 
motory : see locomotor.] In biol., the motive locum-tenens (16'kum-te'nenz), n. [ML., < L. 
apparatus or motor mechanism of the body, locum, ace. of locus, place, + tenens, ppr. of 
consisting of the muscles as the active agents tenere, hold: see locus and tenant. Hence, 
of locomotion, and of the bones as the passive through P., lieutenant.] One who holds the 
fulcrums and levers by which muscular power place of another; a deputy or temporary sub- 
is applied. stitute. 
locqmotory (16-k9-m6'to-ri), a. [< NL. locomo- locupletelyt (lok'u-plet-li), adv. [< *1oeuplete 
torius, < locomotor, locomotor: see locomotor.] (= OP. locuplet, <' L. locuples (-plet-), rich in 
Pertaining to or concerned in locomotion ; pos- lands, rich, opulent, < locus, a place, + 'plere, 
, 
fill, plenus, full: see complete, etc.) + - 
Richly. 
sessing the power of moving or of causing mo- 
tion; locomotive. 
loco-plant (16'ko-plant), n. Same as loco-weed. 
locorestive (16-ko-res'tiv), a. [< L. locus, a , . 
place, + E. restive, q. v.] Staying in one place : locus (16'kus), n.; pi. loci (-si). [< L. locus, OL 
- 
Bedocumentized most locupleatly. 
Naxhe, Lenten Stuffe. 
correlative of locomotn-e. 
rare - J 
[Humorous and 
i., Correspondence (ed. 1870), p. la (Em-ycAict) 
. -. . , 
stlocus, a place. Prom L. locus are ult. E. lo- 
cal, locality, etc., lieu, lieutenant, etc., locate, allo- 
X'e^rVf Tl e ' *>**>*>> ^ }' A 
P lace j spot; locality. 2. In anat., some place, 
the genus, and Oxylropis Lamberti. The poisonous element or to two equations in analytical geometry; a 
has not been satisfactorily determined. Also called crazy- curve considered as generated by its moving 
LTcrian (16'kri-an),^, and * [< L. Locri, < Gr. SffijtfJ^SS or 
Locust (Pachytylus M, 
natura 
toriits), atx>ut half 
mode Sefr CrlmMagnaGr!8Cla - 
' 
Loorlan 
t of pencils 
er of converging or diverging rays; an optical 
II.' n. An inhabitant of Locris in Greece; !T;~l 5 ' A plaee , or ,.P assa .g e in a writing; 
pecifically, one of those who occupied the the plural a collection of passages, espe- 
J^- Sci ,! ptur f S ^ Oth f r ancien j t 
. methodically selected and arranged 
specifically, one of those who occupied ,, 
three detached divisions of ancient Locris on 
the Malian and Eubcean gulfs and on the gulf 
of Corinth, called respectively the Kpicnemid- 
ian and Opuntian Locrians and the Ozolian Lo- 
crians. 
loculament (lok'u-la-ment), n. [< L. locula- 
mentum, a case, box',' cell, < loculus, a cell : see 
loculus.] In bot., same as loculus. 
same as loculus. 
locular (lok'u-lar), a. [< LL. locularis, kept in 
boxes, < L. loculus, a box, cell: see loculus.] 
upon some special topic or topics 
. , a catena ; a book or work consisting 
of such a selection. -congregation of loci. See 
congreyatton. - Cuspidal locus. See cuspidal. Genius 
loci See yenius. - Geometric locus, a locus in sense 
3, above. Linear locus. See Knear.-lMCUS eseru- 
leus, a darkish tract extending upward from the fovea 
anterior on the floor of the fourth ventricle of the brain 
It is caused by the substantia ferruginea. Locus classi- 
cus (pi. loci daxrici), a standard passage, especially in an 
anoent author ; a passage which exemplifies the meaning 
of a word or affords information with special clearness or 
fullness, or which is the principal or only original author- 
ity on a subject, and is accordingly regularly cited in books 
locust 
on that subject. Locus delicti, in law, the place where 
an offense was committed. LOCUS In quo, the place In 
which: a short phrase used in law, in actions of trespass, 
to designate the area of land upon which the trespass is 
alleged to have been committed : as, the locus in quo was 
part of an abandoned highway. LOCUS nlger, the sub- 
stantia nigra (which see, under substantial Locus per- 
foratus anticus, the anterior perforated space at the oase 
of the brain, near the entrance of the Sylvian fissure. Lo- 
cus perforatus posticus, the postperforatus, or postcri- 
brum, the posterior perforated space, or pons Tarini. 
Locus pcenitentiae, a point or space of time for repen- 
tance; in law, a point in a person's course at which it is not 
yet too late to change his legal position; the possibility 
of withdrawing from a contemplated obligation or wrong 
before being committed to it. LOCUS slgllll, the place 
of the seal: a phrase (usually abbreviated to i.S.)usedin 
making a copy of a sealed instrument, to indicate where 
a seal was affixed to the original, and in some of the United 
States allowed to be used as and instead of a common law- 
seal. Locus stand! (literally, place of standing), recog- 
nized place or position ; specifically, in law, right of place 
in court ; the right of a party to appear and be heard on 
a question before a tribunal. Nodal locus, the locus of 
the nodes of a system of curves. 
locust 1 (16'kust), n. [< ME. locuste = F. locuste 
= Pg. It. locusta = AS. lopust, < L. locusta, a lo- 
cust, a shell-fish. Cf. lobster, nit. from the same 
source.] 1. One of the orthopterous saltato- 
rial insects of the family Aeridiidce, popularly 
known as grasshoppers, and more correctly 
called short-horned grasshoppers. Thus, Stocky 
Mountain locust is a common, popular, and book name of 
Caloptenus or Melanoplus spretus, also popularly known 
by its other name of the western or hateful grasshopper. 
Locusts, in this sense, are allied to the long-horned grass- 
hoppers and the crickets, but differ from them in having 
shorter antennae and bodies and limbs more robust. Their 
hind legs are large and strong, which gives them great 
power in leap- 
ing. Their man- 
dibles and max- 
illae are strong, 
sharp, and jag- 
ged, and their 
food consists of 
the leaves and 
green stalks of 
plants. They have colored elytra and large wings, disposed 
when at rest in straight folds. They fly well, but are of- 
ten conveyed by winds to distances which they could not 
have attained by their own power. Their ravages are well 
known. Locusts are eaten in many countries, roasted or 
fried. They are often preserved in lime or dried in the sun. 
The most celebrated species is the migratory locust of the 
East, Pachytylus migratorius. It is about 2J inches long, 
greenish, with brown wing-covers marked with black. Mi- 
gratory locusts are most commonly found in Asia and Afri- 
ca, where they frequently swarm in countless numbers, 
darkening the air in their excursions, and devouring every 
blade of the vegetation of the land they alight on. 
2. An orthopterous saltatprial insect of the ge- 
nus Locusta, family Locustida?. 3. A homopter- 
ous insect of the genus Cicada, family Cicadida;, 
such as the harvest-fly, Cicada tilricen, and the 
seventeen-year locust.orperiodicalcicada.Cica- 
daseptendeeim. See cut under Cicadidce. [U.S.] 
4. A cockchafer; a beetle. [North. Eng.] 
Bald locust, a locust of an undetermined species. 
And the bald locust after his kind. Lev. xi. 22. 
Clumsy locust, Brachystola magna, a large flightless 
grasshopper, 2J inches long, found in Kansas, Colorado, 
Wyoming, and other western parts of the United States. 
See Brachystola. Green-striped locust, Tragocephala 
(or Chim<erocephala) wridifaimata, a grasshopper of large 
size and showy coloration, occurring all through the United 
States and Canada. Lobe-crested locust, an acridiid of 
the genus Tropidacris, which comprises some of the largest 
insects known, certain of the Central and South American 
forms having a wing-expanse of 8 or 9 inches. The only 
United States representative is T. dux, which occurs in 
Texas. Red-thlghed locust, Caloptenus femur-rubrum, 
one of the commonest of all grasshoppers In the United 
States, a near relative of the Eocky Mountain locust, but 
non-migratory, and slightly smaller and shorter-winged. 
Rocky Mountain locust, Caloptenus (or Melanoplus) 
spretus, otherwise called hateful grasshopper, inhabiting 
permanently portions of Montana, Wyoming, and Idaho, 
and the adjoining British possessions, and migrating in 
immense swarms through several of the Western States 
and territories, doing incalculable damage. It is a little 
over an inch long, and of a grayish-green color, with wings 
which when closed reach some distance beyond the end of 
the abdomen. See cuts under Caloptenus. Seventeen- 
year locust, the periodical cicada. 
locust 1 (16'kust), v. i. [< locustl,n.] To devour 
and lay waste like locusts ; ravage. [Rare.] 
This Philip and the black-faced swarms of Spain . . 
Come locusKng upon us. eat us up. 
Tennyson, Queen Mary, ii. 1. 
locust 2 (16'kust), n. 1. A well-known tree of 
the United States, Robinia pseudacacia, with 
thorny branches, delicate pinnate leaves, and 
dense clusters of white heavily scented flowers. 
The wood is heavy, hard, strong, and very durable, and use- 
ful for treenails, posts, turnery, etc. The tree is exten- 
sively planted for ornament, and also as a timber-tree It 
suffers from attacks of the locust-borer. Also called Uack 
or yellow locust, and false or bastard acacia. The related 
it. Neomexicana is also called loctist. The locust-tree of 
Guiana and the West Indies is llymemra Courbaril. In 
the Wet Indies, Birrsonima cariacea. and B. cinerea of the 
Malinyhiacea> are also called locust. 
2. The carob-tree. Ceratonia Siligita. See Ce- 
ratonia and carob. 3. The wood of the locust- 
