Added 9 October 2026
optics
/ˈɒptɪks/ noun
Latin root: opticus Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about optics at Wordnik → Where our words come from →
- The branch of physics that studies the physical properties of light.
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Optical properties.
the optics of a telescope
Origin
From Medieval Latin opticus (“optic, optical”), from Ancient Greek ὀπτικός (optikós), equivalent to optic + -ics.
From Wiktionary, via Kaikki.org (CC BY-SA)