ergosterol - a plant sterol that is converted into vitamin D by ultraviolet radiation

fat-soluble vitamin - any vitamin that is soluble in fats

large integer - an integer equal to or greater than ten

Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe

alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"

cardinal - being or denoting a numerical quantity but not order; "cardinal numbers"