lutecium
- n a trivalent metallic element of the rare earth group; usually occurs in association with yttrium
lutefisk
- n dried cod soaked in a lye solution before boiling to give it a gelatinous consistency
lutein
- n yellow carotenoid pigments in plants and animal fats and egg yolks
luteinizing hormone
- n a gonadotropic hormone that is secreted by the anterior pituitary; stimulates ovulation in female mammals and stimulates androgen release in male mammals