Definition of "extemporising" [extemporising]

• Present participle of extemporise. (verb)

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• "(Thus we saw that the amoeba is in the habit of "extemporising" a stomach when it wants one.) "Other wants occasioned by circumstances will lead to other efforts, which in their turn will generate new organs.""
• "The difference is that, unlike Alvy, Ruppert seems to believe that there is still a good reason to get out there and talk about these things, and maybe even do something, although after almost 90 minutes of watching him extemporising, explaining, chain-smoking and occasionally weeping at the tragic state of things, it's hard to see what."
• "A far more likely explanation is that they were never part of the instructions in the first place and the accused was again extemporising an answer that he thought would serve his immediate purpose, which included his oft repeated insistence that other were to blame, particularly his accounting staff, for questions that he had difficulty in answering."