. . . "105528395"^^ . "a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways"@en-us . . "0"^^ . "105211881"@en-us . . . . . "alveolus"^^ . . . "0"^^ . "05528395-n"^^ . . . . . "alveolus"@en-us . . . "air cell"@en-us . . . . "air sac"@en-us .