Definitions
of or relating to or involving light or optics
Word origin
From optic + -al.
Used in a sentence
“Strabismus is an optical defect.”
“A microscope is an optical instrument.”
“Refraction is an optical effect.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Visual”7 letters
02“about sight”7 letters
Not quite right?
"Search similar patterns."
O______