Simple Definition of omega
: the 24th and last letter of the Greek alphabet
Full Definition of omega
1 : the 24th and last letter of the Greek alphabet — see alphabet table
2 : the extreme or final part : end
3 a : a negatively charged elementary particle that has a mass 3270 times the mass of an electron —called also omega minus b : a very short-lived unstable meson with mass 1532 times the mass of an electron —called also omega meson
Origin of omega
Middle English, from Greek ō mega, literally, large o
First Known Use: 15th century
Rhymes with omega
Medical Definition of omega
: of, relating to, or being a chemical group or position at the end of a molecular chain <omega oxidation of fatty acids>
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Medical Dictionary: Definition of "omega"
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