INF- 



149 



INS- 



Beneath the trochlea ; appl. a nerve 

 (anat.\ 



infructescence (in'friiktSs'gns) n. [L. 

 ///, into ; frtictus, fruit.] An in- 

 florescence matured into a fruit 

 (fat.). 



infundibular (in'fiindlb'ular) a. [L. 

 infundibttlum, funnel.] Funnel- 

 shaped ; appl. an abdominal muscle 

 (anaf.) ; appl. a funnel-shaped 

 corolla (bot.). 



infundibuliform (m'fundib'uliform) a. 

 [L. infiindibuluin, funnel ; Jorma, 

 shape.] Infundibular. 



infundibulum (In'fundlb'ulum) n. [L. 

 infundibulum, funnel.] Any funnel- 

 shaped organ or structure ; appl. 

 part of the brain, of the ethmoid 

 bone, of right ventricle, etc. (anaf.}; 

 a cephalopod siphon ; part of a 

 bird's oviduct ; the flattened 

 stomach-like cavity of a Cteno- 

 >hore, lying in the transverse plane 



pnore, 



(zool.). 



infuscate (Infus'kat) a. [L. in, into ; 

 fuscus, dark.] Tinged to appear 

 dark, as insect wings (zool.). 



infusoriform (in'fuzo'riform) a. [L. 

 infusus, poured into ; forma, shape.] 

 Resembling an Infusorian ; appl. 

 embryonic forms of some Coelenter- 

 ates (zool.). 



infusorigen (m'fuzo'rijSn) n. [L. in- 

 fusus, poured into; genos, offspring.] 

 A gastrula-like phase in develop- 

 ment of certain Mesozoa (zool.). 



ingest (inject') v. [L. ingestus, taken 

 in.] To convey food material into 

 the alimentary canal or food-cavity 



ingestion (injeYchon) n. [L. ingestus, 

 taken in.] The swallowing or 

 assumption of food-material (phys.). 



ingluvies (ingloov'iez) n. [L. inglu-vies, 

 crop.] The crop of a bird ; a dila- 

 tation of the oesophagus (zool.). 



inguinal (tng'gwinal) a. [L. inguen, 

 the groin.] In the region of the 

 groin (anaf.). 



inguinal ring, see abdominal ring. 



inguino - abdominal (Ing'gwino - ab- 

 dom'inal) a. In region of abdomen 

 and groin (anat.). 



inguino-crural (ing'gwlnd-kroor'al) a. 

 In region of groin and leg (anat.). 



inhalent (Inha'ldnt) a. [L. in, into ; 

 halare, to breathe.] Adapted for 



inspiring or drawing in, as terminal 

 pores of incurrent canals in Sponges, 

 or siphons in Molluscs (zool.). 



inhibition (In'hibish'on) n. [L. in- 

 hibere, to prohibit.] Prohibition or 

 checking of an action already 

 commenced (phys.). 



inhibitory (inhTb'ftori) a. [L. inhibere, 

 to prohibit.] Appl. nerves which 

 control movement or secretion 

 (Phys.). 



inion (fn'ion) ;/. [Gk. inion, back of 

 head.] The external protuberance 

 of the occipital (anaf.). 



ink sac, in Sepia, a pear-shaped 

 body in the wall of the mantle 

 cavity which secretes a black sub- 

 stance, ink or sepia, the ejection of 

 which is a means of defence (zool.). 



innate (In'nat) a. [L. in, in ; gnatus, 

 born.] Basifixed ; appl. anther 

 when filament is only attached to 

 its base (bot.). 



innervation (in'nerva'shun) n. [L. 

 in, into ; neruus, sinew.] Nerve- 

 distribution (anaf.) ; vital nerve 

 force (phys.). 



innominate (Innom'Tnat) a. [L. in, 

 not ; nomen, name.] Nameless ; 

 appl. various arteries and veins 

 (anaf.). 



innominate bone, the hip-bone or 

 lateral half of the pelvic girdle 

 (anat.). 



innovation (in'dva'shun) n. [L. inno- 

 vare, to renew.] A growth or shoot 

 of Mosses which develops into a 

 new plant by the dying-off of the 

 portion of the parent-plant behind 

 it (bot.). 



inocular (Tnok'ular) a. [L. in, into ; 

 oculus, eye.] Appl. antennae in- 

 serted close to the eye (zool.). 



inogen (I'nojen) n. [Gk. is, fibre ; 

 genos, offspring.] A nitrogenous 

 substance of muscle tissue (phys.). 



inotagmata (Tnotag'mata) n. plu. 

 [Gk. is, fibre ; tagma, arrangement.] 

 Ultimate hypothetical units (phys.). 



inquiline (m'kwilin) n. [L. inquilinus, 

 tenant.] An animal living in the 

 home of another and getting share 

 of its food ; a partner in com- 

 mensal ism (zool.). 



inscriptions, tendinous, term appl. 

 three fibrous bands crossing the 

 rectus abdominalis muscle (anat.). 



