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beta-blocker
beta-carotene
beta decay
beta emission
beta-lactam inhibitor
beta-oxidation
beta particle
beta process
beta ray
beta-receptor
beta rhythm
beta sheet
beta test
beta transformation
beta-tubulin
beta wave
betaine
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beta ray
be·ta ray (plural be·ta rays)


noun 
Definition:
 
stream of particles: a stream of beta particles
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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