GLOSSARY. 



383 



to mold. ) A neoformation, a tu- 

 mor. 



Neurilemma (Gr. Neuron, nerve and 

 Lemma, a hugk. ) The covering- 

 sheath of a nerve-fibre. 



Neuroglia (Gr. Neuron, nerve and Glla, 

 glue.) The tissut forming the basis 

 of the supporting frannework of the 

 central nervous tissue. 



Neuroma (Gr. Neuron, nerve and Oma, 

 tumor.) A tumor composed of nerve 

 tissue. 



Neuter cL.NL-uter. neither. > Neither the 

 one nor the other. Inactive. Neither 

 acid nor alkaline. 



Neutrophile (L. Neuter, neither and Gr. 

 Phileein, to love.) A cell or struc- 

 ture stainable by neutral dyes. 



Nevus (L. Nevus, a mole. J A mole. A 

 congenital angioma of the skin. 

 Birthmark. 



Nidus (L.Nidus, a nest.) The original 

 point of a morbid process or focus 

 of infection. 



Noxious (L. Noxious, harmful. ) Having 

 harmful properties. 



Kucleolus (L. Nucleus, a small nut and 

 diminutive term.) A small body 

 within the nucleus of a cell. 



Nncleoplasm (L. Nucleus, a small nut 

 and Gr.Plasseln, to mold.) The pro- 

 toplasm of a nucleus. 



Nucleus (L. Nucleus, a small nut.) The 

 essential part of a living cell. 



Obligatory (L.Oblgare, to bind.) Bound 

 by conditions. Not facultative. 



Odontoma (Gr.Odons. tooth and Oma, 

 tumor. ) A tumor of tooth-like 

 structure. 



Oedema (Gr.Oidema, a swelling.) The 

 accunnulation and retention of lyniph 

 in lymph vessels and spaces. Dropsy. 



Oogenesis (Gr. Oon. vgg and Gennaein, 

 to produce.) The origin and de- 

 velopment of the egg. 



Ophthalmia (Gr.Ophthalmos, the eye. ) 

 Inflammation of_ the structures of 

 the eye. 



Opsonin (Gr.Opsono, a dainty food. ) A 

 product of the body-cells that pre- 

 pares bacteria for phagocytosis. 



Optimum < L.Optimus, best.) A condi- 

 tion characterized by the most fav- 

 orable conditions. 



Organized (Gr.Organon, organ.) Con- 

 verted into an organ or organ-like 

 structure. 



Oscillation ( L.Oscillare, to vibrate.) A 

 regular motion back and forth 

 within narrow limits. 



Osmotic fGr.Osmos, impulse.) Pertain- 

 ing to osmosis. The passage of li- 

 quids and substances in solution 

 through a membrane. 



Ossification (L.Ossa. bone and Facere, 



to make.) The formation of bone. 

 Osteitis (Gr. Osteon, bone and Itis, iji- 



flammation ) Inflammation of bone. 



Osteoblast (Gr. Osteon, bone and Blas- 

 tos, germ.) A cell of mesoblastic 

 origin concerned In .the formation 

 of bone. 



Osteoclast (Gr. Osteon, bone and Klaein. 

 to bruak.) A large multinuclear cell 

 concerned In the removal of bone. 



Osteophyte (Gr.Ostcon, bone and Phu- 

 ton, plant.) A bony outgrowth, tree- 

 like in character. 

 >tologic (Gr.Ous. ear and Logos, stu- 

 dy.) Pertaining to Otology; The stu- 

 dy of the ear, 



Oxyphile fGr.Oxus. sharp and Phileein, 

 to love.) Stainable with acid dyes. 



Palpated (L.Palpare. to feel of.) Ex- 

 amined with the hand to determine 

 conditions beneath. 



Paracentesis (Gr.Para, near and Kente- 

 sis, puncture.) Surgical puncture of 

 the walls of a cavity. 



Paralysis (Gr.Para, near and Luein, to 

 loose. ) Loss of sensation or motion 

 in a part. 



Parasite (Gr.Para, near and Sitos, food.) 

 An organism that gains protection 

 or sustenance or both at the ex- 

 pense of another organism. 



Parenchyma (Gr.Para, near En, in and 

 Cheum. foundation, to pour in. i The 

 foundation, or essential or function- 

 ing portion of a structure. 



Parenchymatous (Gr.Para, near En, in 

 and Cheem, foundation, to pour in.) 

 Pertaining to or affecting the paren- 

 chyma. 



Parietes (L. Paries, wall. ) The envelop- 

 ing or investing structure of a body 

 cavity. 



Parturition (L.Parturire, to bring forth.) 

 The act of giving birth to young. 



Pathogenesis ( GrPathos. suffering and 

 Gennaein, to produce.) The origin of 

 disease. 



Pathology (Gr. Pathos, suffering and 

 Logos, study.) The study of dis- 

 ease. 



Peptons (Gr.Pepton, digesting.) Pro- 

 teids formed by the action of pep- 

 sin on albumins during digestion. 



Perichondrium (Gr.Peri, around and 

 Chondros. cartilage.) The fibrous 

 connective -tissue covering of carti- 

 lage. 



Perimysium (Gr.Peri around and Mus, 

 muscle.) The sheath of connective- 

 tissue around a fasciculus of mus- 

 cle fibres. 



