Quadratrix
Pronunciation : Quad*ra"trix, n.; pl. -trixes
Part of Speech : or
Etymology : [NL.] (Geom.)
Definition : Defn: A curve made use of in the quadrature of other curves; as the quadratrix, of Dinostratus, or of Tschirnhausen.
-trices.
Source : Webster's Unabridged Dictionary, 1913