POL- 



250 



POS- 



many ; thele, a nipple.] Poly- 

 mastism. 



polytocous (polit'okus) a. [Gk. polys, 

 many ; tokos, offspring.] Prolific. 



polytomous (p81it'6mus) a. [Gk. 

 polys, many ; tome, a cutting.] 

 Having more than two secondary 

 branches (bot.). 



polytrichous (pol'itrik'us) a. [Gk. 

 polys, many ; thrix, hair.] Having 

 the body covered with an even 

 coat of cilia, as certain Infusorians 

 (zool.). 



polytrochal (pol'itro'kal, pollt'rokal) a. 

 [Gk, polys, many ; trochos, wheel.] 

 Having several circlets of cilia 

 between mouth and posterior end, 

 as in certain Annulates (zool.). 



polytrochous, polytrochal. 



polytrophic (pol'itrofik) a. [Gk. 

 polys, many ; trophe, nourishment.] 

 Nourished by more than one organ- 

 ism or substance (biol.). 



polyzoarium (p51'iz6a'riurn) n. [Gk. 

 polys, many ; zoon, animal.] The 

 skeletal system of a Polyzoan 

 colony ; the colony itself (zool.). 



polyzoic (pol'izo'ik) a. [Gk. polys,;, 

 many ; zoon, animal.] Appl. a 

 colony of many zooids ; appl. a spore / 

 containing many sporozoites (zool-.). ' 



pome (pom) n. [L. pomum, apple.] 

 An inferior, indehiscent, two or 

 more celled fleshy fruit (bot.). 



pomum Adami, the prominent ridge 

 of the thyroid cartilage in the front 

 of the neck, more pronounced in 

 males (anat.). 



pons (ponz) n. [L. pans, bridge.] A 

 structure connecting two parts, as 

 the pons Varolii of the cerebellum 

 (anat.). 



pontal, pontic, pontile, pontlne, 

 pert, a pons or the pons Varolii 

 (anat.). 



ponticulus (p5ntik'ulus) n. [L. ponti- 

 culus, a small bridge.] A vertical 

 ridge on the auricular cartilage 

 (anat.). 



popliteal (pSplIt'eal, pop'lite'al) a. 

 [L. poples, the ham.] Pert, the 

 region behind and above the knee- 

 joint ; appl. artery, glands, nerve, 

 vein, muscle (anat.). 



pore (por) n. [Gk. poros, channel.] 

 A minute opening or interstice, as 

 of the skin, of a stone. 



porlcidal (po'risi'dal) a. [Gk. poros, 

 channel ; L. caedere, to cut.] De- 

 hiscing by valves or pores, as the 

 poppy order (bot.'). 



poriferous (porif'grus) a. [Gk. poros, 

 channel ; L. ferre, to bear.] Fur- 

 nished with numerous openings or 

 pores. 



poriform (po'riform) a. [Gk. poros, 

 channel ; L. forma, shape.] Re- 

 sembling a pore. 



porocyte (po'roslt) n. [Gk. poros, 

 channel ; kytos, hollow.] A per- 

 forated cell of Porifera (zool.). 



porogam (po'rogam) n. [Gk. poros, 

 channel ; gamos, union.] A plant 

 whose pollen-tube enters the ovule 

 by the micropyle ; opp. chalazogam 

 (bot.). 



porogamy (porog'a.mi) n. \Gk. poros, 

 channel ; gamos, union.] Entrance 

 of a pollen-tube into the ovule by 

 the micropyle to secure fertilization 

 (bot.). 



porophyllous (po'rofil'us) a. [Gk. 

 poros, channel ; phyllon, leaf.] 

 Appl. leaves with numerous trans- 

 ^ parent spots (bot.). 



porta (por^ta) n. [L. porta, a gate.] 

 A gate-like structure, as the trans- 

 verse fissure of the liver (anat.). 



portal (portal) a. [L. porta, gate.] 

 Appl. a system of veins draining 

 the abdominal part of the alimentary 

 canal, spleen, pancreas, and gall- 

 bladder (anat.). 



portio (po/tio, por'shio) n. [L.portio, 

 portion.] A part or portion of a 

 nerve, blood-vessel, etc. (anat.). 



postabdomen (post'a.bdo'me'n) n. [L. 

 post, after ; abdomen, belly.] In 

 Scorpions, themetasoma or posterior 

 narrower five segments of the 

 abdomen (zool.). 



postanal (pSsta'nal) a. [L. post, after ; 

 anus, vent.] Situated behind the 

 anus (zool.). 



postaxial (postak'slal) a. [L. post, 

 after ; 'axis, axle.] On the posterior 

 side of the axis ; as on the fibular 

 side of the leg (anat.). 



postbranchial (postbrang'kial) a. [L. 

 post, after ; Gk. brangchia, gills.] 

 Behind the gill-clefts ; appl. a 

 structure arising in the pharynx 

 (zool.). 



postcardinal (postkar'dinal) a. [L. 



