- gamma - the 3rd letter of the Greek alphabet
--1 is a kind of letter, letter of the alphabet, alphabetic character
--1 is a member of Greek alphabet- gamma - a unit of magnetic field strength equal to one-hundred-thousandth of an oersted
--2 is a kind of field strength unit
--2 is a part of oersted- da Gamma, Vasco da Gamma, Gamma - Portuguese navigator who led an expedition around the Cape of Good Hope in 1497; he sighted and named Natal on Christmas Day before crossing the Indian Ocean (1469-1524)
--3 is a kind of navigator
- gamma - a unit of magnetic field strength equal to one-hundred-thousandth of an oersted