a thin plastic sheet with profiles of several curves, used by draughtsmen for drawing curves
French curve in American English
a template for drawing curved lines
French curve in American English
noun
a flat drafting instrument, usually consisting of a sheet of clear plastic, the edges of which are cut into several scroll-like curves enabling a draftsperson to draw lines of varying curvature
Also: french curve
Word origin
[1880–85]This word is first recorded in the period 1880–85. Other words that entered Englishat around the same time include: Chief of Staff, barnstorm, irredentist, rain check, regionalism