Meaning of ALPHA in English

ALPHA

n.

Function: adjective

Date: 1863

1 : closest in the structure of an organic molecule to a particular group or atom ― symbol α < α -substitution>

2 : socially dominant especially in a group of animals <an alpha male>

3 : ALPHABETIC

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.