Generatrix
Pronunciation : Gen`er*a"trix, n.; pl. L. Generatrices
Part of Speech : E.
Etymology : [L.] (Geom.)
Definition : Defn: That which generates; the point, or the mathematical magnitude, which, by its motion, generates another magnitude, as a line, surface, or solid; -- called also describent.
Generatrixes.
Source : Webster's Unabridged Dictionary, 1913