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单词 rhamphoid
释义 rhamphoid, a. Math.|ˈræmfɔɪd|
Also ram-.
[f. Gr. ῥάµϕος beak + -oid.]
rhamphoid cusp, a cusp at which the two branches of the curve lie on the same side of the common tangent.
1852Todhunter Diff. Calc. §301. 1873 [see keratoid 1].
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