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spicule n. 針狀體,小穗,小穗狀,骨針 針狀體,小穗,小穗狀,骨針 spicule n 1: small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e. g. sponges and corals [ synonym: { spicule}, { spiculum}] Spicule \ Spic" ule\, n. [ L. spiculum a little point, a dart.] 1. A minute, slender granule, or point. [ 1913 Webster] 2. ( Bot.) Same as { Spicula}. [ 1913 Webster] 3. ( Zool.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria. [ 1913 Webster] Note: Spicules vary exceedingly in size and shape, and some of those found in siliceous sponges are very complex in structure and elegant in form. They are of great use in classification. [ 1913 Webster] Description of the Illustration: [ 1913 Webster] a Acerate; b Tricurvate, or Bowshaped; c d Hamate; e Broomshaped; f Scepterellate; g Spinispirulate; h Inequi- anchorate; i Sexradiate; j A Trichite Sheaf; k Six- rayed Capitate; l Rosette of Esperia; m Equi- anchorate. [ 1913 Webster] 21 Moby Thesaurus words for " spicule": bramble, brier, bristle, burr, cactus, catchweed, cleavers, goose grass, needle, nettle, pine needle, prickle, quill, spiculum, spike, spikelet, spine, sticker, thistle, thorn, yucca
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