POL 



334 



PON 



are used to perfume cocoa-nut 



' oil. 



polyporous, a., pol-ip'-dr-us (Gr. 

 polus, many ; poros, a passage), 

 in bot., having many pores ; 

 applied to the Fungi found in 

 pastures, on old trees, etc. , whose 

 under surfaces are full of pores. 



polypus, n., pdl'ip-us, polypi, n. 

 phi., p6l f -ip-l (Gr. polus, many ; 

 pous, a foot), a pear - shaped 

 tumour, attached by its thin end 

 or stalk to some mucous mem- 

 brane. 



polysepalous, a., pol''$'S%p'dl-us 

 (Gr. polus, many ; Eng. sepal), 

 in bot., applied to plants where 

 the sepals of a calyx form no 

 cohesion ; having a calyx com- 

 posed of separate sepals ; syn. 

 of 'eleutherosepalous,' and 'apo- 

 sepalous.' 



polyspenn, n., pdl'i-sperm (Gr. 

 polus, many ; sperma, seed), 

 in bot., a pericarp containing 

 numerous seeds : polyspermal, 

 a., pol'i- sperm' al, also poly- 

 spermous, a., -sperm' us, con- 

 taining many seeds. 



polysporous, a. , pol'i-spor ' us (Gr. 

 polus, many ; spora, seed), in 

 bot. , having many seeds. 



polystemonous, a. , pol'i-ste'm'd'n'us 

 (Gr. polus, many ; stemon, a 

 stamen), in bot., having the 

 stamens more than double the 

 sepals or petals, in number. 



polystome, n., pol-is'-ttim-Z (Gr. 

 polus, many ; stoma, a mouth), 

 in zool. , an animal having many 

 mouths, as among certain of the 

 Protozoa : polystomous, a., p6l- 

 is' tdm-us, in zool., having more 

 than two suckers or mouths ; in 

 bot., having many suckers in the 

 same fibril or root. 



polysymmetrical, a., pol'-i-sim- 

 met'rik-al (Gr. polus, many ; 

 Eng. symmetrical), in bot., having 

 a member which can be divided 

 by several planes into portions, 

 each the reflected image of the 

 other. 



polythalamous, a., 



us (Gr. polus, many ; thalamos, 

 a chamber), in zool., having 

 many chambers, as in the shells 

 of Foraminifera and Cephalopoda. 



Polytrichum, n., pdl'.i-trik'um 

 (Gr. polus, many ; thrix, hair, 

 trichos, of hair), a very pretty 

 genus of Mosses, Ord. Musci or 

 Bryacese, with rigid leaves and a 

 hairy calyptra : Polytrichum 

 commune, k8m-mun'% (L. corn- 

 munis, common), a species made 

 into dusting-brooms, called silk- 

 brooms. 



polyuria, n., pdl'-i-ur'-i-a (Gr. 

 polus, much ; ouron, urine), an, 

 excessive flow of urine, as in 

 diabetes ; see ' hydruria. ' 



Polyzoon, n.^pbVi-zo'-on, Polyzoa, 

 n. plu., pol'i-zo'a (Gr. polus, 

 many ; zoon, an animal), a 

 division of the Molluscoida, 

 comprising compound animals, 

 as the sea - mat ; a numerous 

 class of plant-like animals, chiefly 

 inhabitants of the sea, also called 

 'Bryozoa': Polyzoarium, n.,pol' 

 fa-d-dr'-i-tim, the dermal system 

 of a colony of the Polyzoa ; see 

 * Polypidom. ' 



pome, n., pom (L. pomum, an 

 apple), a fleshy many-celled fruit, 

 as the apple and pear : Pomese, 

 n. plu., p6m'-$-e, a Sub-order of 

 the Ord. Rosacese, forming the 

 Pomacese of Lindley: pomaceous, 

 a., pom-d'shus, consisting of or 

 pert, to apples : pomum Adami, 

 dd-dm'i (Adami, of Adam), the 

 apple of Adam ; the prominence 

 in the neck formed by the 

 thyroid cartilage, in the neck of 

 the male especially. 



pompholyx, n., pomf'dl-iks (Gr. 

 pompholux, a bubble, a blister), 

 another name for 'pemphygus,' 

 which see. 



pons, n., ponz (L. pons, a bridge), 

 in anat. , a form of communication 

 between two parts : pons hepatis, 

 hep'-dt-zs (L. hepar, the liver, 

 hepatis, of the liver), the prolonga- 



