toric adjective & noun.
['tɒrɪk, 'tɔ:rɪk] L19.[from TORUS + -IC.]A. adjective. Pertaining to or having the form of (part of) a torus;
spec. (esp. of a lens) having a surface curved like part of a torus, the radius of curvature having a minimum value in one direction and a maximum value in the direction at right angles to this.
L19.b. noun. A lens with a toric curvature.
M20. [TahlilGaran] English Dictionary ▲