英日字典: mayfly
The mayfly has 1 Senses.
- shadfly, dayfly, mayfly
- slender insect with delicate membranous wings having an aquatic larval stage and terrestrial adult stage usually lasting less than two days
- 幼虫期は水生で、たいてい2日も無い命の成虫期は地上性のデリケートな膜質の羽を持つ細長い昆虫
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