siliceous sponge — noun : a sponge having a siliceous skeleton … Useful english dictionary
Sponge spicule — Sponge spicules Spicules are structural elements found in most sponges. They provide structural support and deter predators. Large spicules, visible to the naked eye are referred to as megascleres, while smaller, microscopic ones are termed… … Wikipedia
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
Sponge reef — taxobox image caption = Hexactinellae from Ernst Haeckel s Kunstformen der Natur , 1904 name = Hexactinellid Reef Sponges regnum = Animalia phylum = Porifera classis = Hexactinellida subclassis = Hexasterophora subdivision ranks = Orders… … Wikipedia
Sponge — This article is about the aquatic animal. For the porous cleaning tool, see Sponge (material). For other uses, see Sponge (disambiguation). Sponge Temporal range: Ediacaran–Recent … Wikipedia
sponge — [spunj] n. [ME < OE < L spongia < Gr spongia, spongos] 1. any of a phylum (Porifera) of simple, aquatic, sessile animals having a porous structure and a tough, often siliceous or calcareous, skeleton 2. the elastic skeleton, or a piece… … English World dictionary
sponge — /spʌndʒ / (say spunj) noun 1. any of a group of aquatic (mostly marine) animals (phylum Porifera) which are characterised by a porous structure and (usually) a horny, siliceous, or calcareous skeleton or framework, and which, except in the larval …
sponge — [[t]spʌndʒ[/t]] n. v. sponged, spong•ing 1) ivt any porous, aquatic, sessile animal of the phylum Porifera, having a fibrous siliceous or calcareous internal skeleton and lacking tissue organization 2) the skeleton of certain sponges, readily… … From formal English to slang
glass sponge — noun a siliceous sponge (with glassy spicules) of the class Hyalospongiae • Hypernyms: ↑sponge, ↑poriferan, ↑parazoan • Hyponyms: ↑Venus s flower basket • Member Holonyms: ↑Hyalospongiae, ↑ … Useful english dictionary
horny sponge — any sponge of the orders Dictyoceratida and Dendroceratida (class Demospongiae). It has a skeleton consisting exclusively of fibrous organic components. Most other sponges, by contrast, have siliceous or calcareous elements as well as… … Universalium
