The adjective for alveolus (singular) or alveoli (plural) is alveolar.

The word disambiguation refers to the process of trying to resolve conflicts that arise when a single term is ambiguous. Disambiguation seeks to have clarity from ambiguity.

mammary alveolus

Alveolar macrophage cells work to clear particles from the alveolus by phagocytosis. If this process is overcome by continued build up of particles then the alveolus becomes damaged. Once an alveolus is blocked there isn't much you can do.

One alveolus is a singular, tiny air sac of the lung, surrounded by a network of capillaries, and through which oxygen and carbon dioxide are exchanged. A cluster of such air sacs are alveoli (plural of alveolus).