beta receptor

or be·ta-re·cep·tor


noun Biochemistry, Physiology.

a site on a cell, as of the heart, that, upon interaction with epinephrine or norepinephrine, controls heartbeat and heart contractability, vasodilation, smooth muscle inhibition, and other physiological processes.

Nearby words

  1. beta iron,
  2. beta line,
  3. beta particle,
  4. beta radiation,
  5. beta ray,
  6. beta rhythm,
  7. beta sheet,
  8. beta stock,
  9. beta structure,
  10. beta test


Origin of beta receptor

First recorded in 1960–65

Also called beta-adrenergic receptor.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019