The definition of beta

3 Definitions of: beta

1. noun, the second letter in the Greek alphabet (Β, β), a consonant, transliterated as b
2. noun, the second highest grade or mark, as in an examination
3. noun, a) involving or relating to electrons b) relating to one of two or more allotropes or crystal structures of a solid c) relating to one of two or more isomeric forms of a chemical compound
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No synonyms or antonyms found for word beta

From Collins