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

The chief virtue that language can have is clearness, and nothing detracts from it so much as the use of unfamiliar words.
Hippocrates