Associations to the word «Afocal»

Wiktionary

AFOCAL, adjective. (optics) (of an imaging system) Not focused
AFOCAL, adjective. (optics) (of a lens) Neither concave or convex (focal point at infinity)

Wise words

Words are always getting conventionalized to some secondary meaning. It is one of the works of poetry to take the truants in custody and bring them back to their right senses.
William Butler Yeats