an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a chattering or flighty, light-headed person.
the offspring of a zebra and a donkey.
a fool or simpleton; ninny.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
late 15c., in alchemy, "tempering, refining of something to a certain degree," from graduate (q.v.). General sense of "dividing into degrees" is from 1590s; meaning "action of receiving or giving an academic degree" is from 1630s; in reference to the ceremony where a degree is given, from 1850s.