What does trifocal mean?
Trifocal means (optics) Involving three foci..
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Pronunciation varies by accent · adjective
(optics) Involving three foci..
Use trifocal when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Trifocal means (optics) Involving three foci..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use trifocal where its definition matches the intended context.
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