1. reduced by the subtraction of; less four minus two
2. Informal without; lacking minus a toe

Etymology: LME < L, less, neut. sing. of minor, minor

adjective

1. indicating or involving subtraction a minus sign
2. negative a minus quantity
3. somewhat less than a grade of A minus
4. Bot. designating one of two strains of certain fungi and algae which only mate with the opposite (plus) strain
5. ☆ Elec. negative

noun

1. a minus sign
2. a negative quantity
3. a negative quality, feature, etc.