widow bird
plural of microfibre
A small prehistoric flint tool that has serrated edges
(neuroanatomy) A white, fatty material, composed of lipids and lipoproteins, that surrounds the axons of nerves.
Any of several species of birds in the family Viduidae, incorporating whydahs and widow finches.
ウィドウバードは精巧な巣を作り、高い草に揺れるその巣で劇的な尾の見せびらかしをして求愛相手を引き寄せた。
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