Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology 709polypidom see polyparyPolyplacophora, polyplacophoran n. [Gr. polys, many; plax,tablet; phora, producing] A class of free-living molluskscommonly referred to as chitons or coat-of-mail shells;distinguished by having a shell with 8 dorsal calcareousplates that overlap each other; in some classifications listedas the class Amphineura.polyploid a. [Gr. polys, many; aploos, onefold] Referring to anindividual having more than two sets of chromosomes. seechromosome.polyploidy n. [Gr. polys, many; aploos, onefold] A condition inwhich the chromosome sets in the nucleus are a multiple ofthe normal diploid number.polypneustic a. [Gr. polys, many; pneustikos, of breathing](ARTHRO: Insecta) Having at least 8 functional spiracles oneach side, including the holopneustic, peripneustic, hemipneustic.polypneustic lobes see respiratoria, respiratory platespolypod larva (ARTHRO: Insecta) 1. An insect larval stagefound in Lepidoptera and some Hymenoptera with thoracicappendages and caterpillar-like abdominal locomotoryprocesses (prolegs); polypodeiform; eruciform larva. seeprotopod larva, campodeiform larva. 2. In parasiticHymenoptera, it has many different forms, often unlike anormal insect.polypodous a. [Gr. polys, many; pous, foot] Having manyfeet. see protopod, oligopod.polypoid see polyppolyprostatic a. [Gr. polys, many; prostates, stands before](ANN: Oligochaeta) Having more than six prostates in threesegments or over eight in two segments.polysaccharides n.pl. [Gr. polys, many; L. saccharum, sugar]A carbohydrate, one molecule of which can yield by hydrolysis,many monosaccharide molecules, usually structuralor storage, such as chitin, cellulose, starch and glycogen.polysaprobic a. [Gr. polys, many; sapros, putrid] Referring to