Dictionary

Words, grammatical forms and meanings linked to the ontology.

trifocals en · NOUN

Etymology

From tri- + focal (see focus). Coined by John Isaac Hawkins, their inventor, in 1826.

Meanings

(plural, plural-only) Spectacles with corrective lenses that have three different powers per eye.

Relateds

trifocal · bifocals

Translations (2)

pl okulary trójogniskowe (type of spectacles) · fi kolmiteholasit (type of spectacles)