C3U1R1V4I1L1I1N1E1A1R1
16 points
CURVILINEAR is validvalid
defined by a system of curved lines [adj] : CURVILINEARITY [n]
bounded by curved lines, also CURVILINEAL [adj CURVILINEARLY]
defined by a system of curved lines [adj] : CURVILINEARITY [n]
bounded by curved lines, also CURVILINEAL [adj CURVILINEARLY]