The state or condition of being skilful.

(organic chemistry, medicine) Any of several fluoro derivatives of estradiol that have biological activity. Such compounds having isotopically-labelled fluorine atoms are used in medical imaging.

(geology) The formation of plutonic rocks

(vulgar) Motherfucker (generic term of abuse). / (literally, vulgar) One who engages in incestuous sex with their brother. / (vulgar) A homosexual man.