osculatrix

== English == === Etymology === From New Latin osculātrīx (literally “female kisser”), from Latin osculor (“to kiss”) + -trīx. === Pronunciation === === Noun === osculatrix (plural osculatrices) (geometry) A curve whose contact with a given curve at a given point is of a higher order (or involves the equality of a greater number of successive differential coefficients of the ordinates of the curves taken at that point) than that of any other curve of the same kind. === References === “osculatrix, n.”, in OED Online ⁠, Oxford: Oxford University Press, launched 2000.