crusoile 
Tlliill SCIIIIIMIC "f Ills lllcllillL' -liotK, that wcrl chrMnid 
ill a r, "".'/ uith M.-nnii,'* nt.'i. 
I/," /" ,i,i,l /;,ir/. !,-/, Insatiate rcHiiiti'HH, I. 
crust (krtist), H. [< MK. crust = I). burnt = 
MLC. l.l'imli. !,<;. l.-iir.iti; kimlr = <tll(). rrnsln. 
Mllti. II. /.TM.sVr = Oh', cnillHtr, V. cnn'ltf = I'r. 
Pg. It. cniKlti = Sp. fimlrii, < K. ci-iixtii, the hard 
surface of a body, rind, shell, crust, inlaid 
work; cf. Or. it/mx;, frost: nee cri/stal.] 1. A 
hard external portion, of comparative, thinness, 
forming a sort ol' emit in:.' over the softer inte- 
rior part ; any hard outer coat or coating : as, 
the crust of frozen snow ; the crust of a loaf of 
bread ; a thin crust of politeness. 
I have known :m emperor quite hid under a mat of 
dross. A'l'l'x'in, Ancient Medals, I. 
If the wind be rotiKh, und trouble the crunt of the water. 
II'. l.ininiin (Arber's Eng. Garner, I. 194). 
Specifically 2. In ycol. : (a) The exterior por- 
tion of the earth ; that part of the earth which 
is accessible to examination. (6) The solid 
portion of the earth, as opposed to its fused 
interior, many geologists and physicists believ- 
ing that the interior of the earth must be in a 
more or less fluid condition. 3. Matter col- 
lected or concreted into a solid body; an in- 
crustation ; specifically, a deposit from wine, 
as it ripens, collected on the interior of bot- 
tles, etc., and consisting of tartar and coloring 
matter. 
From scalp to sole one slough ami crust of sin. 
TVnni/Mm, St. Simeon Stylltes. 
4. A piece of an outer coating or incrustation ; 
specifically, an external or a dried and hard 
piece of bread. 
Give me again my hollow tree, 
A cruitt of bread, and liberty ! 
Pope, Imlt. of Horace, II. vl. 221. 
5. In zoiil., a shell ; a test ; the chitinous or 
other hard covering of various animals, as crus- 
taceans and insects. 6. In anat. and physiol., 
a coat or covering harder or denser than that 
which is covered ; a pellicle ; a crusta : as, the 
buffy coat or crust of inflammatory blood ; the 
crust of a tooth. 7. The part of the hoof of a 
horse to which the shoe is fastened. Crust cof- 
fee. See coffee. 
CTUSt (krust), . [< ME. crusten, < crust, n.~\ I. 
traus. 1. To cover with a crust or hard exte- 
rior portion or coating ; overspread with any- 
thing resembling a crust ; incrust. 
Their legs, and breasts, and bodies stood crusted with 
bark. Addison. 
With blackest moss the flower-nota 
Were thickly crutted, one and all. 
Tennyimn, Mariana. 
The hilt of the sword was covered, and the scabbard was 
erutted with brilliants, first I'earojaSilken Reitrn, p. 282. 
2. To coat or line with concretions. See crust, 
n., 3. 
foul and crusted lx>ttles. 
Swift, Directions to Servants, Butler. 
II. intraiis. 1. To thicken or contract into a 
hard covering; concrete or freeze, as superficial 
matter. 
The place that was burned muted and healed. 
Sir H'. Temple. 
The chilly frost, beneath the silver beam, 
Crept, gently crutting, o'er the glittering stream. 
/fr*ix, Brigs of Ayr. 
2. To crust-hunt. [American.] 
crusta (krus'ta), n. ; pi. crusta (-te). [L., a 
crust: seeerM, n.] 1. In ilccoratire art, some- 
thing prepared for application or inlaying, as a 
small chased or sculptured ornament made for 
the decoration of vessels of silver or other metal. 
2. In hot., the brittle crustaceous thallus of 
lichens. 3. In zoiil., a crust. 4. In a nut.: 
(a) A crust. (6) The smaller and lower of two 
parts into which each crus cerebri is divisible, 
the other being called the tegmcntiim. The 
upper boundary of the substantia nigra is the 
boundary between the two. 5. In physiol. and 
/( tlinl., a crust. 6. A cocktail served in a glass 
lined with the rind of half a lemon and having 
its rim incrusted with sugar. -Crusta flbrosa, 
the cement of a tooth. Sen cement, ., 4. Crusta in- 
flammatoria, the luitfy coat Sec t>u/y. Crusta lac- 
tea, in i><iil">l., < i-/cnia pustulosum, as met with on the 
face and head of infants at the breast; milk-crust. 
Crusta petrosa, the stony cru.st of a ti>oth ; tlu 1 cement. 
Srr ''. nl'-ilt, n., 4. 
A mass of true lione, which takes the place of the cnusta 
l>etr*n. //ux/cj/, Anat, Vert,, p. 41. 
Crusta phlogistica, the buffy coat. See bufn. 
Crustacea (krus-ta'shiii), H. i>l. [NL., neut. pi. 
of eriixtuci'iix, having ;i crust: see crustaceous. 
Cf. \..ci-iisiiitn. shell-fish: see crnxtntf.] A class 
of .trtlinipixla; one of the prime divisions of 
articulated animals with articulated legs, as 
S7 
1377 
distinguished from Ima-rtu, Mi/riii/nnl'i, and 
.-Iriicliniilii resiiectively. They are mostly aquatic 
arthropod* with (tfenendly) two pairs of antcnme and nu- 
merous thoracic as well as (usually) abdominal artii nl.it ed 
appendagM, and bmthtna ta means of hranehia-. in. 
l>od\ u covered with a hard chltlnoot teat or croat, whanefl 
the immc. It Is seumented into head, thorax, ami alido- 
ineli, the two former of which are mole or le-s ei.mplet. |\ 
united into a ccphalothoriiv, -hiel.l. d vutli a eontini 
crutch 
the trnnslator of Swedenborg's "Principles of 
Natural Philosophy." 
crustalogical (krus-ta-loj'i-kal), a. [< crustal- 
<>i/l/ + -led/.] - -,*lilr<'iitiH/ii'ill. 
crustalogist (krtiH-tal'o-jist), n. [< cruxtalogy 
+ -ixl.\ Same as ri-iixiiiniilni/t^t. 
crustalogy (krus-tal'o-ji), n. [Irreg. for *cru- 
r, < L. crusta, crust, + Gr. -/yia, < Mynv, 
or somite of the IxMly consist, at least theoretically, of a crustate (krus'tat), O. [< L. crustatiu (neut. 
dorsal portion or tergite of two pieces, a ventral portion nj. rrustatu (so. animalia, animals), shell-fish 
or Hternlle, also of two pieces, an epiniei i each side pi;. lv \ rr u*1nrr i-nit ( rrujitii acnint- 
above, and an epliteniuni on each side below. The shell iln . v ). PP- 1st, < cnwM, a cr 
sends inward sundry hard procewe. or partitions called see crust, n., crusta, and cf. custard.] Covered 
apodemata. The typical number of segment* in the higher with a crust : as, crustate basalt. 
Cnutaceato 21, actually or theoretically. The crustaceans crustated (krus'ta-ted), a. [As crustate + -e<fi.] 
si,, d their shell. (exoskeletonsX 111 ome case, with , \ 
traordinary frequency, and they pooes. great reparatory , , 
powers In the reproduction of lost parti Most of them CrUStatlon (krus-ta Hhon), M. 
pass through several larval stages, the beat-marked of 
which are those of the fonns called the nnupliu*, zoea, and 
''. The eni.staceans Include all kinds of crabs and 
lobsters, shrimps, prawn., crawfish, etc., among the higher 
forms ; and among the lower, a great variety of creatures 
known as sand-hopper., Iwach-fleas, wood-lice, fish-lice, 
us r/ nutate. 
. r [As crustate + 
An adherent crust ; an incrustation. 
(krus't*r), n. One who crust-hunts for 
game; a crust-hunter. [American.] 
-ton.'] 
Ho long as dog. and crutter* are forbidden, the deer will 
,,..., . remain abundant Parent and Stream. 
barnacles, etc. Leading t)|>es, in more technical teniis 
are the thoracostracan, podophthalmic, or stalk-eyed CTUSt-hunt (krust hunt), . . To hunt deer, 
crustaceans, as crabs anil crawfish ; the edriophthalmous ruoose, or Other large game on the SHOW, when 
the crust is strong enough to support the hun- 
ter but not the game, which is in consequence 
or sessile-eyed crustaceans, as hemodipods, amphipod.s. 
and Isopods (all the foregoing being sometimes grouped 
together as malacostracoiiH crustaceans); tile enUtmos- 
tnu oils crustaceans, as the copepods, ostracodes, cladoce- 
raus, ph\ llopods. etc., the trilobites and their related 
forms being often brought under this division ; the epi- 
zoans, ichthyophthirians, or fish-lice; and finally, the cir 
easily overtaken and killed. [American.] 
crust-hunter (krust 'hun'ter), n. One who 
crust-hunts. [American.] 
r'ipe'ds. ' Great 'as is the' difference between extremes in CrUSt-huntlng (krust'hun'ting), H. [Verbal n. 
of crust-hunt, i:] The method of hunting large 
game, in the winter, on the crust of the snow. 
[American.] 
It was the constant endeavor . . . to make it appear 
that the opponent, of water-killing were staunch advo- 
any of these forms, they are closely related by connecting 
forms, and naturalist, are by no means agreed upon the 
formal division of the class. The older divisions which 
have been made are now mostly superseded, and even the 
mi id em "lies are seldom exactly conterminous. A series of 
subclasses sometimes now adopted is: (1) Cirripetlia or 
Pectogtraca, with three or four orders ; (2) Eyizna or leh- 
thyoyhthiria ; (3) Entomottraca, with such orders as Coy<- - 
porfa, Ontraeuda, Cladiicera, Phyllopoda, -Viz/Aura, Trtiv- 
cates of January cnigt-hnntintf and June floating. 
t'oreit and Stream, XXIV. 425. 
vntla, <}*tmni<la, Cltuliicera, I'liiiUopMa, .\ivtiura, 'I run- 
bita, Eurypter\dn;(t)Edriuphthaltna, with Lcriuodijioda, CTUStlflC (krus-tlf lk), a. [< L. crusta, a crust, 
Amphipiida. and Impoda; (5) Podophthalma, with Stoma- -J- -ficun, < fncere, make: see -lie, -Jy.] PrO- 
tu]ioda an<l Decaimda ; to which s<jme add(0) l'odo>mata, .i.-pj., nr nHt, or lcin TKftre 1 
^^^^^^^ 
The trilobites with thceurypterygians and king-crabs some- surlily. 
time, constitute one prime division called Giijantortraca. crustiness (krus'ti-nes), . 1. The quality 
Haeckel uses Carides as a substitute for Cnutacea. of being crusty; hardness. 2. Peevishness; 
crustacean (krus-ta'shian), a. and . [< Cms- gna ppi B Tine88; surliness. 
tacea + -an.] I. a. Of or pertaining to the cmgting (krus'ting), n. [Verbal n. of crust, c. 
Crustacea. i., 2.]The practice of crust-hunting. [Ameri- 
II. . One of the Crustacea. can.] 
crustaceological(krus-ta'she-o-loj'i-kal),a. [< crust-lizard (krust'liz''ard), . A book-name 
crustaceology + -ical.] Pertaining to crustace- of t |, e yaranoid lizard;' Hdoderma horridum. 
ology. Also calletl Gila monster. 
crustaceologist (krus-ta-she-ol o-jist), . [< crustose (krus'tos), a. [< ML. crustosu*, full of 
crustaceoUigy + -ist.] One versed in crustace- crusts, < L. crt/to, crust.] Crust-like; crusta- 
ology ; a carcinologist. J. O. Westicooa. ceous 
crustaceology (krus-ta-she-ol'o-ji), n. [< NL. crug t y ' (krus'ti), a. [< cruxt + -y'.] 1. 
Crustacea, q. v., + Gr. -/o>io, < Myciv, speak : cru8t . o f tne ua ture of crust; hard: as, a 
see -ology.] That branch of zoOlogy which 
treats of crustaceous animals ; carcinology. 
crustaceorubrin (krus-ta'she-o-rb'brin), . [< 
surface or substance. 
Like 
a crusty 
NL. Crustacea, q. v., + L. ruber (rubr-), red, + 
-in 2 .] A red pigment found in certain crusta- 
ceans. 
crustaceous (krus-ta'shius), a. [< NL. crusta- 
ceits, < L. crusta, a crust : see crust, n., crusta.] 
1. Pertaining to crust ; like crust ; of the na- 
ture of a crust or shell. 
That most witty conceit of Anaxlmander, that the flrst 
men and all animal, were bred in some warm moisture, 
inclosed in crtutaceotu skins, as if they were . . . crab- 
fish and lobster. ! Bentley, Sermons, iv. 
Seekanauk, a kinde of cruxttj shel-nsh. 
Ilakluyt't Voyaycc. 
2. In zool. : (a) Having a crust-like shell ; be- 
longing to the Crustacea; crustacean. (6) In 
f n torn., having a somewhat hard and elastic tex- 
ture, resisting slight pressure, but not rigid : ,.,4,1 
said of parts of the integument. 3. In Dot. : ' 
(a) Hard, thin, and brittle. (6) In lichenoloyy, 
forming a flat crust in or upon the substratum, 
A crutty Ice all about the sides of the cup. 
Boyle, Works, II. 715. 
2. [In this sense supposed by some to have 
arisen as an accom. of curst in a like sense.] 
Peevish ; snappish ; surly ; harshly curt in man- 
ner or speech. 
How now, thou core of envy? 
Thou cnuty batch of nature, what's the news? 
Shale., T. and C., v. 1. 
His associates found him sometime, selfish and some- 
times crusty. The sweeter and mellower liaits needed 
years and experience for their full ripening. 
<J. S. Herriam, S. Bowles, I. 34. 
. 
E -, v 
Ill her., same as crucily. 
n. A dwarf. Brockett. [North. 
(kr ut), . [Perhaps 
The M h s 
and adhering to it firmly by the whole under stir- ^ (kru J t) [Ir f gee 
fnnft. .... .,.- ,,.>! (.1 tut Ui-mo wo Kill ll'ltll/lllf 111 Til W . .V 
< F. croiite, crust: 
art of oak-bark. 
face, so as not to be separable without injury 
applied to the thallus of lichens, 
crustaceousness (krus-ta'shius-nes), n. The 
character or quality of having a crust-like 
jointed shell. 
crustacite (krus'ta-sit), n. [< crustac(eous) + 
-Hi.] A fossil crustacean, 
crustae, - Plural of crusta. 
crustal (knis'tal), o. and n. [< crust + -al.] 
1. n. 1. Of, pe'rtainingto, or of the nature of 
crust ; crustaceous. [Kare.] 
The increased rate of thickening (of the crust of the 
moon) would result both from the increased rate of gen- 
eral cooling anil from the addition of cr*tnl layers upon 
tin- i-xtclior. Winchrll, World-Life, p. 4O2. 
2. Of or pertaining to a crustal. 
II. . One of the superficial particles of any 
given order which collectively form the crust 
Irish musical instrument. 
An ancient 
See croird 2 . 
One can scarcely resist the conclusion which forces it- 
self on the mind in reading over the references to the 
Crut scattered through Irish manuscripts, that that in- 
strument was a tnte harp, played upon with the lingers, 
and without a plectrum. 
H'. A'. Snlliran, Introd. to O'Cnrry's Anc. Irish, p. cxix. 
crutch 1 (kruch), n. [< ME. crutchc, cruccke, 
cruche, < AS. crycc, less prop, spelled cricc, gen. 
dat. ace. cri/cce, cricce, = MD. kruckt, D. Icruk = 
MLG. fawefok kroch: LG. krukke, k>Hck = OHG. 
chruckjd, chrucha, MHG. krvche, ///"/.. < ' . trick* 
= Dan. krykke = Norw. krykkjn = OSw. krykkia, 
Sw. krycka, a crutch. Akin to crook, with which 
in the Romance tongues its derivatives are min- 
gled: ML. croccia, eruciii, cruccii. etc.. > It 
da, also ffruccia, a crutch; ML. ci-win. ,;-m-liiii. 
crocca, etc., a crozier: see crook and rrww 2 , cro- 
of a particle of another order : a term used by tier, and cf . crotch.] 1 . A support for the lame 
