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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 chattering or flighty, light-headed person. |
revertant re·ver·tant (rĭ-vûr'tnt)
adj.
Having reverted to the normal phenotype, usually by a second mutation. n.
A revertant organism, cell, or strain.