单词 | keratoid |
释义 | keratoid, a.|ˈkɛrətɔɪd| [ad. Gr. κερατοειδής horn-like: see prec. and -oid.] 1. Math. Resembling a horn in shape. keratoid cusp: a cusp at which the two branches of the curve lie on opposite sides of the common tangent; a cusp of the first species.
1873Salmon Higher Plane Curves 46 These two kinds of cusps have been called keratoid and ramphoid from a fancied resemblance to the forms of a horn and a beak. 1875Todhunter Diff. Calc. (ed. 7) xxii. §301 Cusps of the first species have been called ‘keratoid cusps’. 2. Resembling horn in substance.
1885–8Fagge & Pye-Smith Princ. Med. (ed. 2) I. 117 The analogy of keratoid carcinoma..suggests that they may be in great part made up of pre-existing tissue elements. |

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