| polypodiaceae | (n) ferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae), Syn. family Polypodiaceae |
| polypodium | (n) a genus of ferns belonging to the family Polypodiaceae and having rounded naked sori, Syn. genus Polypodium |
| polypody | (n) any of numerous ferns of the genus Polypodium |
| polyporaceae | (n) fungi that become corky or woody with age, often forming shelflike growths on trees, Syn. family Polyporaceae |
| polypore | (n) woody pore fungi; any fungus of the family Polyporaceae or family Boletaceae having the spore-bearing surface within tubes or pores; the fruiting bodies are usually woody at maturity and persistent, Syn. pore mushroom, pore fungus |
| polyporus | (n) type genus of the Polyporaceae; includes important pathogens of e.g. birches and conifers, Syn. genus Polyporus |
| polyporus squamosus | (n) a fungus with a lateral stalk (when there is a stalk) and a scaly cap that becomes nearly black in maturity; widely distributed in the northern hemisphere, Syn. scaly polypore |
| polyporus tenuiculus | (n) a fungus with a whitish kidney-shaped cap and elongated pores; causes white rot in dead hardwoods |
| Polypode | n. [ Gr. &unr_;, &unr_;, the wood louse, milleped: cf. F. polypode. See Polyp. ] (Zool.) An animal having many feet; a myriapod. [ 1913 Webster ] |
| Polypode | n. [ Cf. F. polypode. See Polypody. ] (Bot.) A plant of the genus |
| Polypodium | n. [ L., fr. Gr. &unr_;, dim. of &unr_;. See Polyp, and cf. 2d Polypode. ] (Bot.) A genus of plants of the order |
| Polypody | n. (Bot.) Any plant of the genus |
| Polypoid | a. [ Polyp + -oid. ] |
| Polypomedusae | ‖n. pl. [ NL. See Polyp, and Medusa. ] (Zool.) Same as Hydrozoa. [ 1913 Webster ] |
| Polyporous | a. [ Poly- + porous. ] Having many pores. Wright. [ 1913 Webster ] |
| Polyporus | ‖n.; ☞ Polyporus fomentarius was formerly dried and cut in slices for tinder, called amadou. Polyporus betulinus is common in America, and forms very large thick white semicircular excrescences on birch trees. Several species of |
| Polypous | a. [ Cf. F. polypeux. See Polyp. ] Of the nature of a polypus; having many feet or roots, like the polypus; affected with polypus. [ 1913 Webster ] |