Definition of “arcus” - English Dictionary

british dictionary

“arcus” in British English

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arcusnoun [ C or U ]

uk /ˈɑː.kəs/ us /ˈɑːr.kəs/ plural arcus specialized

a feature in the body that is curved in shape:

Corneal arcus is frequently associated with early coronary artery disease.

(Definition of “arcus” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)