trifocal

trifocal Definition

☆ tri·fo·cal (trī fō′kəl; also, and for n. usually, trī′fō′kəl)

adjective

adjusted to three different focal lengths

noun

a lens like a bifocal but with an additional narrow area ground to adjust the intermediate focus for objects at c. 76 cm (c. 30 in)

trifocal Usage Examples

Modifies a noun

tensor: It arises in the estimation of entities such as the fundamental matrix, homography matrix, and the trifocal tensor, among others.

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