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 (kûr′və-lĭn′ē-ər) also cur·vi·lin·e·al (-əl)
Formed, bounded, or characterized by curved lines.

[Latin curvus, curved; see curve + linear.]

cur′vi·lin′e·ar′i·ty (-ē-ăr′ĭ-tē) n.
cur′vi·lin′e·ar·ly adv.


(ˌkɜːvɪˈlɪnɪə) or


1. (Mathematics) consisting of, bounded by, or characterized by a curved line
2. (Mathematics) along a curved line: curvilinear motion.
3. (Mathematics) maths (of a set of coordinates) determined by or determining a system of three orthogonal surfaces
ˌcurviˌlineˈarity n
ˌcurviˈlinearly adv


(ˌkɜr vəˈlɪn i ər)

also cur`vi•lin′e•al,

1. consisting of or bounded by curved lines: a curvilinear figure.
2. formed or characterized by curved lines.
[1700–10; < Latin curv(us) curve + -i- + linear]
cur`vi•lin`e•ar′i•ty (-ˈær ɪ ti) n.
cur`vi•lin′e•ar•ly, adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.curvilinear - characterized by or following a curved line; "curvilinear tracery"; "curvilinear motion"
curved, curving - having or marked by a curve or smoothly rounded bend; "the curved tusks of a walrus"; "his curved lips suggested a smile but his eyes were hard"


Deviating from a straight line:


adj (= full of curves) tracery etcmit vielen Rundungen or Kurven; (= curved) motion, coursegewunden; (Geometry) figurekrummlinig begrenzt
References in periodicals archive ?
We use the body-fitted curvilinear coordinates in which the grid lines are adjacent to the bottom obstacle and also to the free surface.
They utilized non-orthogonal, boundary-fitted, and curvilinear coordinates to investigate volumetric flow-rates at a fixed pressure gradient (dP/dx = 1.
Some areas addressed are numerical studies in axial and centrifugal turbomachines, the application of boundary layer techniques to turbomachinery, blade aerodynamic parameterization and optimization methods, and governing equations expressed in non-orthogonal curvilinear coordinates for calculating 3D viscous fluid flow in turbomachinery.
Thus, relative to the reference configuration, the Green-Lagrange deformation tensor, given in general curvilinear coordinates by Eq.
The method proposed in this paper transforms the domain of the Poisson problem designated by the curvilinear coordinates into a square domain.