or cur·vi·lin·e·al

[ kur-vuh-lin-ee-er ]
/ ˌkɜr vəˈlɪn i ər /


consisting of or bounded by curved lines: a curvilinear figure.
forming or moving in a curved line.
formed or characterized by curved lines.

Nearby words

  1. curve of occlusion,
  2. curved,
  3. curvedly,
  4. curvet,
  5. curvette,
  6. curvilinear coordinate system,
  7. curvilinear tracery,
  8. curvy,
  9. curzon,
  10. curé

Origin of curvilinear

1700–10; < Latin curv(us) curve + -i- + linear

Related formscur·vi·lin·e·ar·i·ty [kur-vuh-lin-ee-ar-i-tee] /ˌkɜr vəˌlɪn iˈær ɪ ti/, nouncur·vi·lin·e·ar·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for curvilinear

British Dictionary definitions for curvilinear



/ (ˌkɜːvɪˈlɪnɪə) /


consisting of, bounded by, or characterized by a curved line
along a curved linecurvilinear motion
maths (of a set of coordinates) determined by or determining a system of three orthogonal surfaces
Derived Formscurvilinearity, nouncurvilinearly, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for curvilinear



1710, from curvi-, comb. form of Latin curvus (see curve (v.)) + linearis, from linea "line" (see line (n.)). Earlier was curvilineal (1650s).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for curvilinear


[ kûr′və-lĭnē-ər ]

Formed, bounded, or characterized by curved lines.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.