| alpha-adrenergic | any of various drugs that block alpha-adrenergic receptors |
|---|---|
| alpha-adrenergic | any of various drugs that block alpha-adrenergic receptors |
| alpha-adrenergic | receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasoconstriction and relaxation of intestinal muscles and contraction of smooth muscles) |