| 单词 | planula |
| 释义 | Word Frequency planula(ˈplænjʊlə) nounWord forms: plural -lae (-ˌliː) the ciliated free-swimming larva of hydrozoan coelenterates such as the hydra Derived forms planular (ˈplanular) adjective Word origin C19: from New Latin: a little plane, from Latin plānum level ground |
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