SGOT. n. Serum glutamic aminotransferase; an enzyme that catalyzes the transfer of the amino group from glutamic acid to oxaloacetic acid forming alpha-ketoglutaric acid and aspartic acid, used to measure liver function.Also called aspartate transaminase, AST, GOT, glutamic-oxaloacetic transaminase.erum glutamic aminotransferase; an enzyme that catalyzes the transfer of the amino group from glutamic acid to oxaloacetic acid forming alpha-ketoglutaric acid and aspartic acid, used to measure liver function.