| 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 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. |
A basic, essential purpose; a reason to exist: “Professor Naylor argues that in the nuclear age, infantry forces have lost their raison d'être.” From French, meaning “reason for being.”