| beta | the 2nd letter of the Greek alphabet |
|---|---|
| beta | beets |
| beta | any of various drugs used in treating hypertension or arrhythmia |
| beta | the second brightest star in Centaurus |
| beta | the second brightest star in the Southern Cross |
| beta | glycoprotein that carries iron in the blood |
| beta | an allotrope of iron that is the same as alpha iron except that it is nonmagnetic |
| beta | the brightest star in Orion |
| beta | a high-speed electron or positron emitted in the decay of a radioactive isotope |
| beta | radiation of beta particles during radioactive decay |
| beta | radiation of beta particles during radioactive decay |
| beta | 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 vasodilation and increased heart beat) |