556 



GLOSSARY 



Iris {Or. iris, a coloured halo or circle), the anterior 

 portion of the vascular tissue of the eye, surroundinj; 

 the pupil. 



Ischium (Gr. tschion, hip), the bone forming the 

 posterior part of the os innominatuni. 



Isthmus (Gr. isthmos, isthmus), the neck or con- 

 stricted part of an organ. 



Jugfular (Lat. ji(r/u!iim, throat), pertaining to the 

 throat, especially to two large veins of the throat. 



K 



Keratoma (Gr. icras, horn), a horn tumour ; ap- 

 plied more especially to a growth from the hoof of 

 the horse. 



Kilogram (Fr. kiloyrammc. Gr. chilioi, one thou- 

 sand, and ijramma, a grain), a French standard 

 weight, one thousand grams or 2'2 pounds avoirdu- 

 pois. 



Labial (Lat. labium, a lip), pertaining to the lips. 



Lachrymal (Lat. lacrynvj, a tear), having reference 

 to the organs secreting tears. 



Lacteals (Lat. htc, milk), the lymphatics or vessels 

 of the small intestine that take up the chyle. 



Lamella (Lat. dim. of lamina, a plate), a term 

 applied to a thin scale or plate of tissue, as the lamella 

 of the foot of the horse. 



Laminitis (Gr. lamina, plate ; itis, infiaramation), 

 inflammation of tlie laminae of the horse's foot. 



Lampas (Fr. lampas, lampas), a fleshy swelling 

 behind the upper incisor teeth in the horse. 



Larval (Lat. larva, a ghost), pertaining to the con- 

 dition of a larva, the larva being the early form of an 

 animal quite different from the full-grown form. 



Lecithin (Gr. Ickithos, yolk of egg), a nitrogenous 

 substance occurring widely throughout the body. 



Leguminous (Lat. Icyumen, pulse), pertaining to 

 the Leguniinosse or pea-flowered family of plants. 



Leptothrix (Gr. leptos, thin, and thrix. hair), a 

 genus of bacteria whose elements form straight fila- 

 ments often of great length. 



Leucin (Gr. Icukos, white), a crystalline substance 

 occurring in the pancreas, spleen, thymus gland, and 

 other parts of the body. 



Lichen (Gr. leichen, a lichen), a skin disease in 

 which there is an eruption of solid papules. 



Lingual (Lat. lingua, tongue), pertaining to or 

 shaped like the tongue. 



lithontriptic (Gr. lithos, stone, thryptein, to crush), 

 applied to an instrument for crushing stone in the 

 bladder. 



Lithotomy (Gr. lithos, stone, temncin, to cut), cut- 

 ting into the neck of the bladder to remove a calculus 

 or stone. 



Lithotrity (Gr. lithos, stone ; Lat. tercre, to rub), 

 the operation of crushing a stone in the bladder by 

 means of a lithotrite or crushing instrument, and 

 removing it piecemeal. 



Lobule (Lat. lohulus, a lobe), a small lobe or division 

 of an organ. 



Lumbricalis (Lat. lumhricus, a worm), a name of 

 certain small muscles in the hands and feet. 



Lunare (Lat. luna, moon), a bone of the carpus. 



Lupus (Lat., a wolf), a chronic disease of the skin 

 characterized by the development of nodules of granu- 

 l.ation tissue. 



Lymph (Lat. lympha, clear water), a colourless 

 fluid allied to blood, and contained in vessels called 

 liimpltatirs. 



Lymphangitis (Lat. li/mpha, lymph; Gr. angeion, 

 \essel, itis, inflammation), inflammation of a lymphatic 

 vessel. 



Lymphatic temperament, a condition of system 

 characterized Ijy flabby muscles, sluggish character, 

 and a predisposition to diseases of a low type. 



M 



Macule (Lat. macula, a .spot), discoloration of the 

 .skin due to hyperiemia or extravasation of blood, or 

 to pigmentation of the skin. 



Malar (Lat. mala, cheek), pertaining to the cheek 

 or cheek-bone. 



Malarial (It. mala aria, bad air), pertaining to 

 malaria, a feverish disease common in many marshy 

 districts. 



Malic acid (Lat. malum, an apple), an acid formed 

 in many jjlants and their fruit — appl&s, grajjes, &c. 



Mallein (Lat. malleus, farcy), a fluid obtained from 

 the bacillus mallei — the micro-organism of glanders. 



Malleolus (Lat. dim. of malleus, hammer), a process- 

 of bone having a hammer-like shape. 



Marasmus (Gr. marasmos, marainein, to grow lean), 

 a gradual, general deterioration in strength, with 

 marked emaciation. 



Massage (Fr., from Gr. massein, to knead), rubbing, 

 kneading, and other manipulations of the superficial 

 parts t>f the body. 



Mastoid (Gr. mastos, breast ; eidos, shape), having 

 the shape of the breast or of a nipple, applied to a part 

 of the temporal bone. 



Meatus (Lat. meare, to flow or pass), a passage, duct, 

 or canal. 



Meconium (Gr. mlkdnion, lit. poppy juice), the first, 

 fiscal discliarges of the new born. 



Mediastinum (Lat. jiicrfio stare, to stand in the 

 middle), a middle portion or septum separating ad- 

 jacent parts. 



Medulla (Lat. medulla, marrow), a structure en- 

 closed in another structure, like the marrow of bone. 



Medullated (Lat. medulla, marrow), forming a 

 medulla, as nerve fibres enclosed in a medullary 

 sheath. 



Megacoccus (Gr. mecjas, large, and holckos, a berry), 

 a large-sized rounded bacterium or coccus: opposed' 

 to a micrococcus. 



Megastoma (Gr. megas, large; stoma, a mouth), a 

 genus of infusorians. 



Megrims (Fr. migraine; Lat. hemierania), neuralgiii. 

 of one half of the head. 



Melanosis (Gr. 7nelas, melan, black), a general ten- 

 dency to the deposit of black pigment in various 

 parts of the Ijody, mostly seen in grey horses. 



Membrana nictitans. See Nictitating membrane. 



Meningitis (Gr. meninx, membrane, and itis, in- 

 flammation), inflammation of the membranes of the- 

 brain or spinal cord. 



Merismopedia (Gr. mcrismos, divi.sion; pais, child), 

 a bacterium multiplying by rectangular division, thus 

 forming .a group of four cells in one plane. 



Mesentery (Gr. mesos, middle, and cntcron, bowel), 

 a fold of peritoneum connecting the small intestine- 

 to the spine and keeping it in place. 



Mesorchium (Gr. mesos, middle; orchis, te9ticle)t at 

 fold of peritoneum containing the foetal testicle before 

 its descent. 



Metacarpal (Gr. metakarpion, wrist), pertaining to 

 the two bones between the knee and the fetlock joint 

 of the horse. 



