Answer: alveolus

AnswerCrossword Clue
ALVEOLUSLung compartment
alveolusair cell of the lungs, formed by the terminal dilation of tiny air passageways
alveolusone of the terminal secretory units of a racemose gland
alveolusthe socket within the jawbone in which the root or roots of a tooth are set
alveolusa small body cavity, also ALVEOLE
alveoluslittle cavity, pit, or cell, as a cell of a honeycomb