| BET | an allotrope of iron that is the same as alpha iron except that it is nonmagnetic |
|---|---|
| BET | the brightest star in Orion |
| BET | a high-speed electron or positron emitted in the decay of a radioactive isotope |
| BET | radiation of beta particles during radioactive decay |
| BET | radiation of beta particles during radioactive decay |
| BET | 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) |
| BET | the normal brainwave in the encephalogram of a person who is awake and alert |
| BET | pre-release software that has received an alpha test but still has more bugs than a regular release |
| BET | a second test of an experimental product (such as computer software) carried out by an outside organization |
| BET | biennial Eurasian plant usually having a swollen edible root |
| BET | beet lacking swollen root |
| BET | beet having a massively swollen red root |