One of the calcareous or siliceous needles found in sponges. Usually in plural.
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| 单词 | θ31899 |
| 释义 | the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule (67) spiculum1842 One of the calcareous or siliceous needles found in sponges. Usually in plural. spicula1845 = spiculum, n. 3. spicule1846 In sponges: = spiculum, n. 3. needle1870 A spicule of a sponge, esp. when unbranched and pointed. Subcategories:— unspecified (4) — pointed at both ends (2) — style (1) — rod-shaped and knobbed (3) — branched (3) — cross-shaped (1) — star-shaped (7) — wheel-shaped (2) — having rays (14) — having short axis (1) — of two or more revolutions in growth (1) — flesh spicule (5) — rhabdus (7) — triaene (8) — desma (2) — keel of C-shaped sponge-spicule (1) — formation into a spicule (1) |
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