COL´LUM, _n._ Neck; part of body between and connecting head and trunk.
(47.)
COLORA´TION, _n._ Coloring; pattern or mode of coloring, or the colors
collectively.
COLUMEL´LA, _n._ Bone or cartilage of the inner ear of _Sauropsida_,
answering to the _stapes_ of mammalia.
COMB, _n._ Erect fleshy lengthwise process, or caruncle, on top of head,
as in the domestic cock.
COMMIS´SURAL POINT. Point where the apposed edges of the mandibles
meet and join; corner of the mouth. Equivalent to angle of the mouth,
_angulus oris_.
COM´MISSURE, _n._ (Lat. _con_ and _mitto_, to put or lay together.) Line
of closure of the two mandibles; track or trace of their apposed edges
when the jaws are closed. Often improperly used to signify the _opening
between_ the mandibles; but this is _apertura oris_, _gape_, _rictus_.
_Commissure_ is the whole _rima oris_, outline of the mouth, when such
outline of upper and under jaw is made one in closure of the mouth.
COMPLEX´US, _n._ Name of a certain cervical muscle.
COMPRESSED´, _a._ Narrowed sidewise; higher than wide. The opposite of
_depressed_.
COMPRESSED´ (_tail_), _a._ Folded together, as in the barnyard cock. =
_Cauda compressa_.
CONA´RIUM, _n._ Same as PINEAL BODY (which see).
CON´CAVE, _a._ Hollowed, as the inner side of a curved line or inner
face of a curved surface. Opposite of _convex_.
CON´DYLE, _n._ Articular eminence of bone in hinge-joints.
CON´FLUENT, _a._ Run together; grown together; coalesced.
CONIROS´TRAL, _a._ Having a conical bill, like a sparrow’s.
CONJUNCTI´VA, _n._ Vascular membrane lining the eyelids and reflected
over the front of the eyeball.
CON´NATE, _a._ Born or produced together; originally united; joined from
the beginning. _Connation_ is earlier and more intimate or complete
union than _confluence_.
CONTINU´ITY, _n._ Part of a thing between its ends in any way
distinguished.
CON´TOUR FEATH´ERS, _n._ The general plumage of perfect feathers, lying
external and determining the superficial shape of a bird. Distinguished
from _down feathers_.
COR´ACOID (_bone_), _n._ Large stout bone connecting shoulder with
sternum.
COR´DATE, COR´DIFORM, _a._ Heart-shaped.
CORIA´CEOUS, _a._ Denoting integument of dense, tough, leathery texture.
CO´RIUM, _n._ Same as CUTIS (which see).
COR´NEA, _n._ Transparent portion of the eyeball.
COR´NEOUS, _a._ Horny.
COR´NIPLUME, _a._ Tuft of feathers on head, erected like a horn.
COR´NU, _n._ Horn.
CORO´NA, _n._ Top of head. Equivalent to cap or pileus. Vertex is the
highest point of corona.
COR´ONATE, _a._ Having coronal feathers lengthened or otherwise
distinguished.
COR´PUS, _n._ Body, as a whole.
COR´PUS CALLO´SUM, _n._ Mass of transverse white fibres, connecting the
cerebral hemispheres; wanting in birds.
COR´TICAL, _a._ External, as opposed to _medullary_.
COS´TAL, _a._ Pertaining to the ribs.
COSTIF´EROUS, _a._ Rib-bearing, as the dorsal vertebræ.
COT´YLE, _n._ Same as ACETABULUM.
COX´A, _n._ Hip.
CRA´NIAL, _a._ Pertaining to the skull.
CRA´NIUM, _n._ Skull.
CREST, CRIS´TA, _n._ Any lengthened feathers of top or sides of head.
CRIB´RIFORM, _a._ Sieve-like.
CRI´COID, _a._ Name of a certain laryngeal cartilage.
CRIS´SUM, _n._ Properly, the under tail-coverts collectively. Oftener
used to designate the circumanal plumage. (66.)
CRO´TAPHYTE (_depression_). A concavity on the outside of the skull on
each side behind, filled with muscle; temporal fossa.
CROWN, _n._ Pileus; top of head, especially the vertex.
CRU´CIAL, CRU´CIFORM, _a._ In the shape of a cross. The _crucial test_
is one experimentally conclusive.
CRURÆ´US, _n._ Name of a certain muscle of the thigh.
CRU´RAL, _a._ Pertaining to the crus, or shin.
CRUS, _n._ The shin; segment of the leg between the thigh and ankle,
represented by the tibia.
CRYS´TALLINE (_lens_), _a._ See LENS.
CU´BIT, _n._ The forearm.
CU´BITAL, _a._ Pertaining to the forearm.
CU´CULLATE, _a._ Hooded.
CUL-DE-SAC, _n._ “Bottom of a bag”; closed end of a cavity.
CUL´MEN, _n._ Ridge of upper mandible; highest median lengthwise line of
the bill. (20.)
CUL´MINAL, _a._ Pertaining to the culmen.
CULTRIROS´TRAL, _a._ Having the bill shaped like a heron’s.
CUN´EATE, CUN´EIFORM, _a._ Wedge-shaped. A cuneate tail has the middle
feathers longest, the rest successively regularly shortened.
CUN´EIFORM (_bone_), _n._ One of the wrist-bones.
CURSO´RIAL, _a._ Running; pertaining or belonging to an obsolete group,
_Cursores_ or runners.
CUS´PIDATE, _a._ Pointed as a spear-head.
CUTA´NEOUS, _a._ Pertaining to the skin. Same as _dermal_.
CU´TICLE, _n._ Scarf-skin; outermost layer of skin, which continually
exfoliates.
CU´TIS, _n._ Skin; the true skin, as distinguished from cuticle and
subcutaneous tissue. _Corium_ and _derma_ are synonymous.
CYST, _n._ Sac holding pathological products.