Definition of powder-post beetle in English:

powder-post beetle

Syllabification: pow·der-post bee·tle

noun

A small brown beetle whose wood-boring larvae reduce wood to a very fine powder.
  • Family Lyctidae: several genera

Definition of powder-post beetle in:

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Word of the day neoteny
Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal