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单词 ptychopterygium
释义 pty·cho·pterygium
\“+\ noun
(plural ptychopterygia)
Etymology: New Latin, from ptych- + Greek pterygion little wing, fin — more at pterygium
: a primitive fin consisting of a low triangular flap supported by a series of unbranched rays
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更新时间:2024/12/23 17:32:10