单词 | caseworm |
释义 | caseworm (extremely rare) n WORD FAMILY caseworm n insect larva that constructs a protective case around its body Hypo|Hyper caddisworm, strawworm larva of the caddis fly; constructs a case of silk covered with sand or plant debris larva the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose |
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