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 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.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
late 14c., from L.L. calculationem (nom. calculatio), from calculare "to reckon, compute," from L. calculus "reckoning, account," originally "pebble used in counting," dim. of calx (gen. calcis) "limestone" (see chalk).