any of various substances that interfere with the action of the alpha receptors.
any of various drugs that prevent the stimulation of alpha-adrenergic receptors that increase blood pressure
- Alpha brass
any alloy of copper and zinc, a homogeneous solid solution containing more than 64 percent copper.
- Alpha carotene
alpha carotene alpha carotene n. An isomer of carotene.
- Alpha cell
alpha cell alpha cell n. Cells situated on the periphery of the islets of Langerhans. Cells containing acidophil granules in the anterior lobe of the pituitary gland. Also called A cell.
- Alpha centauri
Astronomy. a triple-star system that is the brightest celestial object in the constellation Centaurus. Contemporary Examples Alpha Centauri sought to write the next part of that story: the game aspired to tell “a history of the future.” Nerdiness from Noah: Alpha Centauri Noah Kristula-Green March 28, 2013 Historical Examples According to this notation, Alpha Centauri […]