Last Updated：2025/11/20
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The gardener brushed away the frass that signaled a caterpillar infestation beneath the leaves.
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The gardener brushed away the frass that signaled a caterpillar infestation beneath the leaves.
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frass
IPA(Pronunciation)
Noun
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uncountable
Japanese Meaning
昆虫の幼虫の排泄物。 / シロアリや古い家の木材に侵入する虫（木材食い虫）の発生する、鋸屑のような副産物。
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