has part has part has_part characteristic of has modifier alveolar macrophage abnormal alveolar macrophage number increased alveolar macrophage number MP:0014228 elevated alveolar macrophage number alveolar macrophage hyperplasia increase in the number of round, granular, mononuclear phagocytes found in the alveoli of the lungs which ingest small inhaled particles resulting in degradation and presentation of the antigen to immunocompetent cells abnormal increased amount