单词 | hyporachis |
释义 | > as lemmashyporachis hyporachis n. Brit. , U.S. (also hyporrhachis) [Greek ῥάχις spine] Ornithology the accessory rachis or shaft of a bird's feather, the hypoptilum.ΚΠ 1886 Newton in Encycl. Brit. XX. 505/2 [The contour-feathers of the Rheas] want the hyporrhachis or after-shaft that in the Emeus and Cassowaries is so long as to equal the main shaft. < as lemmas |
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