trifocals

Questions

What does trifocals mean?

Spectacles with corrective lenses that have three different powers per eye.

Where does trifocals come from?

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

How to pronounce trifocals

1. Open the pronunciation page — Open the Speakur entry for “trifocals”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “trifocals”.
4. Repeat and practice — Say “trifocals” aloud, matching stress and vowels until it feels natural.