In sponges: a needle-shaped spicule which is pointed at both ends.
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| 单词 | θ31901 |
| 释义 | the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > pointed at both ends (2) oxea1886 In sponges: a needle-shaped spicule which is pointed at both ends. rhabd1890 A simple large sponge spicule in the form of a rod with two tapered ends (a diactine spicule). Also: (in more complex spicules) a main ray from… |
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