Quantivalence
Quan*tiv"a*lence\, n. [L. quantus how much + E. valence.] (Chem.) Valence. [Archaic]| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| 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. |
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