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spicula
spic·ule S0636900 (spĭk′yo͞ol) also spic·u·la (-yə-lə)n. pl. spic·ules also spic·u·lae (-yə-lē) 1. A small needlelike structure or part, such as one of the silicate or calcium carbonate processes supporting the soft tissue of certain invertebrates, especially sponges.2. Astronomy A spike-shaped formation emanating from the ionized gas of the solar photosphere.
[Latin spīculum; see spiculum.]
spic′u·lar (-yə-lər), spic′u·late (-yə-lĭt, -lāt′) adj.
spic·u·lum S0637000 (spĭk′yə-ləm)n. pl. spic·u·la (-lə) A small needlelike structure, such as a copulatory organ in a nematode.
[Latin spīculum, diminutive of spīca, point, ear of grain.]EncyclopediaSeespiculumspicula
spic·u·la (spik'yū-lă), Plural of spiculum. [L.] |