omega Definition

the 24th and last letter of the Greek alphabet

the extreme or final part : end

a negatively charged elementary particle that has a mass 3270 times the mass of an electron —called also omega minus

being or composed of polyunsaturated fatty acids in which the first double bond in the hydrocarbon chain occurs between the sixth and seventh carbon atoms from the end of the molecule most distant from the carboxylic acid group and which are found especially in vegetable oils, nuts, beans, seeds, and grains

being or composed of polyunsaturated fatty acids that have the final double bond in the hydrocarbon chain between the third and fourth carbon atoms from the end of the molecule opposite that of the carboxyl group and that are found especially in fish, fish oils, green leafy vegetables, and some nuts and vegetable oils

the beginning and ending

the principal element

the most important part of something