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单词 θ31921
释义
the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > rhabdus (7)
strongyle1886

In sponges: a needle-shaped spicule which is rounded at both ends. Contrasted with oxea, n.

rhabdus1887

Zoology. = rhabd, n. Now rare.

Subcategories:

— types of (3)
— shaft of (1)
— branching arms of (1)
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