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best-ball
best bid
best boy
best-efforts sale
best end
best-execution requirement
best maid
best man
best-of-breed
best-off
best practice
bestial
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bestiary
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beta

be·ta [ báytə, btə ]


noun  (plural be·tas)
Definition:
 
1. 2nd letter of Greek alphabet: the second letter of the Greek alphabet, represented in English as "b"

2. finance measure of price sensitivity: a measure of how volatile the price of a security is, compared to the overall market

3. nuclear physics 
Same as  beta particle




adjective 
Definition:
 
1. comput ready for testing by customers: describes software ready for beta tests
beta version

2. nuclear physics produced by radioactivity: describes electrons formed by the splitting of a neutron into a proton and an electron
beta particles
beta rays

3. chemistry second nearest to designated atom: describes the second nearest atom to a particular atom or group of atoms in an organic molecule

4. being minor form: describes a minor form of a chemical element with more than one form allotrope

5. chemistry being one form among others: describes a structural form of a chemical compound having more than one form isomer

[14th century. Via Latin and Greek< Canaanite bet "house"]
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