rhagon
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rhagon — n. [Gr. rhax, grape] (PORIFERA) A larval stage of a sponge, conical in shape and tapering from a broad base to the summit bearing the single osculum … Dictionary of invertebrate zoology
sponge — spongeless, adj. spongelike, adj. spongingly, adv. /spunj/, n., v., sponged, sponging. n. 1. any aquatic, chiefly marine animal of the phylum Porifera, having a porous structure and usually a horny, siliceous or calcareous internal skeleton or… … Universalium
Porifera — Éponges, Spongiaires Pour les articles homonymes, voir Éponge. Porifer … Wikipédia en Français
rhagonoid — adjective or noun see rhagon … Useful english dictionary