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WordBand 6.5–8Academic (NAWL)
optical
/ˈɒptɪkəl/
adjective
concerning vision or helping people see
- “Optical radar uses light, unlike normal radar, which uses radio waves.”Tatoeba
Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.
Source: New Academic Word List (Browne, Culligan & Phillips) (CC BY-SA 4.0); Wiktionary (CC BY-SA 3.0); Tatoeba (CC BY 2.0 FR)