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afocal

American  
[ey-foh-kuhl] / eɪˈfoʊ kəl /

adjective

Optics.

  1. pertaining to or having no finite focal point, as a telescope.

Etymology

Origin of afocal

a- 6 + focal

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.