(Geom.) The contact of one curve with another, when the number of consecutive points of the latter through which the former passes suffices for the complete determination of the former curve.
... named Prof. Bridger has been infringing my copyright by proclaiming, as an original discovery, that kissing is an excellent tonic and will cure dyspepsia. When the o'erbusy bacteriologists first announced that osculation was a dangerous pastime, that divers and sundry varieties of bacteria hopped blithely back and forth engendering disease and death, I undertook a series of experiments solely in the interest of science. ... — Volume 1 of Brann The Iconoclast • William Cowper Brann