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| 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 calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
laughing gas laugh·ing gas (lāf'ĭng)
n.
Nitrous oxide, especially as used as an anesthetic.
| laughing gas (lāf'ĭng) Pronunciation Key
Nitrous oxide used as a mild anesthetic. |