Definition of “alveolus” - English Dictionary

british dictionary

“alveolus” in British English

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alveolusnoun [ C ]

uk /ˌæl.viˈəʊ.ləs/ us /ælˈviː.ə.ləs/ plural alveoli uk /-laɪ/ us specialized

one of the many very small air bags in the lungs, with thin walls that allow oxygen to enter the blood

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