- pentaradiate
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adj. [Gr. pente, five; L. radius, ray]Arranged in 5 rays.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
pentaradiate
Look at other dictionaries:
Red sea urchin — Taxobox name = Red Sea Urchin regnum = Animalia phylum = Echinodermata classis = Echinoidea subclassis = Euechinoidea superordo = Echinacea ordo = Echinoida familia = Strongylocentrotidae genus = Strongylocentrotus species = S. franciscanus… … Wikipedia
echinoderms — n.; n. pl. [Gr. echinos, spiny; derma, skin] Phylum of marine coelomate animals with basic pentaradiate symmetry in the adult, with a calcareous endoskeleton and a water vascular system … Dictionary of invertebrate zoology
sand dollar — any of various flat, disklike sea urchins, as Mellita testudinata or Echinarachnius parma, that live on sandy bottoms off the coasts of the U.S. [1880 85, Amer.] * * * Any echinoderm (order Clypeastroida, class Echinoidea) that has a coinlike,… … Universalium
