MILT Meaning of MILT in English n. 1 the spleen in mammals. 2 an analogous organ in other vertebrates. 3 a sperm-filled reproductive gland of a male fish. [ OE milt(e) f. Gmc, perh. rel. to MELT ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012