In many jellyfishes: any of several small, club-shaped sensory structures (usually four or eight) that project from the margin of the umbrella…
| 单词 | θ32058 |
| 释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Acalepha > member of (jelly-fish) > parts of > sense-organ (1) rhopalium1881 In many jellyfishes: any of several small, club-shaped sensory structures (usually four or eight) that project from the margin of the umbrella… |
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