Definition of "extemporizes" [extemporizes]

• Third-person singular simple present indicative form of extemporize. (verb)

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• "Since then, Mr. Levin has been improvising in a variety of settings, including one performance in which he improvised the endings of unfinished works by Schubert, and concerts in which he invites audience members to submit musical themes during the intermission on which he then extemporizes."
• "He has a history of making really boneheaded mistakes when he extemporizes."
• "They are tied together with a shared mythology and history which Pratchett extemporizes with the skill of a great jazz musician."