Also called relative maximum, local maximum. the value of a function at a certain point in its domain, which is greater than or equal to the values at all other points in the immediate vicinity of the point. Compare absolute maximum. the point in the domain at which a maximum occurs.
Definition of ALVEOLUS. 1. : a small cavity or pit: as a: a socket in the jaw for a tooth b: a small air-containing compartment of the lungs in which the bronchioles terminate and from which respiratory gases are exchanged with the pulmonary capillaries c: an acinus of a compound gland d: a cell of a honeycomb.2.. : a small cavity or pit: as a: a socket in the jaw for a tooth b: a small air-containing compartment of the lungs in which the bronchioles terminate and from which respiratory gases are exchanged with the pulmonary capillaries c: an acinus of a compound gland d: a cell of a honeycomb. 2.
Deep within the lungs exists its constituent alveoli sacs, the sites responsible for the uptake of oxygen and excretion of carbon dioxide. There are three major alveolar cell types in the alveolar wall (pneumocytes): Type I pneumocyte (Squamous Alveolar) cells that form the structure of an alveolar wall. 2  Type II pneumocyte (Great Alveolar) cells that secrete pulmonary surfactant to lower the surface tension of water and allows the membrane to separate, thereby increasing the capability to exchange gases.