Corpora nigra (Lat. pl. of corpus, a body; niger, black), the masses of black pigment attached to the inner border of the iris.

Corpuscle (Lat. corpusculum, dim. of corpus, a body), any small round or oval body, as the minute corpuscles of the blood.

Cortical (Lat. cortex, bark), pertaining to the outer or surface part of an organ.

Cranium (Gr. kranion, the skull), the cavity that contains the brain.

Creatin (Gr. kreas, flesh), a neutral organic substance that occurs in the animal organism especially in the juice of muscles.

Crusta (Lat., a crust), a thin layer of bone covering the fang of a tooth.

Cryptorchid (Gr. kryptos, hidden, and orchis, testicle), a horse with one or both testicles which have not descended.

Cuboid (Gr. kybos, a cube, and eidos, resemblance), a bone of the hock joint.

Cul-de-sac (Fr. cul, the bottom; de, of; sac, bag), a passage closed at one end ; a closed bag or sac.

Cuneiform (Lat. caneus, a wedge), having the form of a wedge, said of a bone entering into the formation of the knee joint.

Cyst (Gr. kystis, a pouch), a cavity containing fluid surrounded by a capsule.

D

Dartos (Gr. dartos, flayed), a contractile fibrous layer beneath the skin of the scrotum.

Defecation (Lat. defecare - de, from, faex, dregs), the separation of dregs or lees; the discharge of faeces.

Deglutition (Lat. deylutitio, a swallowing), the act of swallowing.

Delirium (Lat. delirium, madness), impaired action of the brain, characterized by mental disorder, a staggering gait, etc.

Deltoid (Lat. delta, the Greek letter A, and cidos, likeness), having the shape of a delta or a triangular form.

Dentine (Lat. dens, a tooth), the bony structure of the tooth, lying under the enamel of the crown, and the cementum of the root.

Deodorizer (Lat. de, priv.; odor, a smell), a substance that destroys offensive odours.

Dermatology (Gr. derma, skin: /070s, discourse), the science of the skin in health and disease.

Desquamation (Lat. desquamare - de, from, squama, a scale), the exfoliation or falling off of cuticle in scales.

Dextrin (Lat. dexter, right), the soluble matter into which starch is converted by diastase or by certain acids.

Diagnosis (Gr. dia, through, and gnosis, knowledge), the interpretation of a disease from its symptoms.

Diagnostician, one skilled in making diagnoses.

Diapedesis (Gr. diapedesis, a jumping through), the passage of the cells of the blood, especially the white ones, through the walls of the vessels.

Diaphragm (Gr. diaphragmu, a partition wall), the midriff, that is, the musculo-membranous partition that separates the chest from the abdomen.

Diaphysis (Gr. dia, between; physis, growth), the middle part or shaft of a long bone.

Diarthrodia. Diarthrosis (Gr. dia, throughout, and arthrosis, articulation), a form of articulation or joint allowing extensive movement.

Diastema (Gr. diastema, a distance), a space or cleft; an interval between different kinds of teeth.

Diathesis (Gr. diathesis - did, through, and till" nai, to arrange), a condition of the body in which it is. liable to certain disease.

Dicrotic (Gr. dikrotos, double beating), having a double beat of the heart.

Diphtheritic, relating to diphtheria.

Diplococci (Gr. diploos, double, and kokkos, berry), a micrococcus whose rounded bodies are found two and two.

Dipterous (Gr. dis, two, and pteron, a wing), two-winged, as a fly or a seed.

Discus proligerus (Gr. diskos, a disc; Lat. proles. offspring; gerere, to bear), the elevated cells of the membrana granulosa of the ovum.

Disinfectant (Lat. dis, neg.; inficere, to infect), an agent that destroys disease germs, and arrests fermentation and putrefaction.

Distoma (Gr. dis, double, and stoma, a mouth), a genus of trematode parasitic worms; one of them, the liver-fluke, is common in sheep.

Diverticulum (Lat. divertere, to turn aside), a small blind pouch or cul-de-sac, branching from some organ.

Dyscrasia (Gr. dys, bad, and krasis, combination), an abnormal state of the blood due to general disease.

Dyspnoea (Gr. dys, ill. and pneo, to breathe), difficult or laboured breathing arising from various causes.

E

Echinococcus (Gr. crhinos, a sea urchin, and kokkos, a berry), same as Echinococcus veterinoruin, a parasite of the tape-worm kind affecting domestic animals.

Ecraseur (Fr.), an instrument used in the amputation of parts.

Ectoparasite (Gr. ektos, outside, and parasitos, a parasite), a parasite that lives on the exterior of its host.

Ectropium (Gr. ek, out. and trepein, to turn), an eversion or turning out of the eyelid.

Efferent (Lat. efferent carrying from), applied to those nerves which conduct impulses from the central nervous system to some tissue; applied to vessels carrying fluid from some centre.

Electuary (Lat. clectuarium, an electuary), a soft or pasty confection containing some drug.

Embolism (Gr. embolos, an embolus), obstruction of an artery from a blood clot or embolus.

Embryo (Gr. embryon), the fertilized germ of an animal.

Emollient (Lat. emollire, to soften), a substance used to soften the skin, or to soothe an irritated internal surface.

Emphysema (Gr. emphysaein, to inflate), an abnormal collection of air in the connective tissue of a part.

Emulsion (Lat. emulgeo, emulsum, to milk out), water or other liquid in which oil in minute subdivision of its particles is suspended.

Emunctory (Lat. emungere, to blow the nose, to wipe out), any organ that aids in carrying off waste matters from the body.

Enamel, the vitreous or glassy substance of the ■crown of the teeth.

Endarteritis (Gr. endon, within, and arteria, artery; itis, inflammation), inflammation of the innermost coat of an artery.

Endermic (Gr. en, in, and derma, the skin), relating to the administration of medicines by rubbing through the skin.