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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. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
oxide ox·ide (ŏk'sīd')
n.
A binary compound of an element or a radical with oxygen.
| oxide (ŏk'sīd') Pronunciation Key
A compound of oxygen and another element or radical. Water (H2O) is an oxide. |