verb (used without object), ex·tem·po·rized, ex·tem·po·riz·ing.
verb (used with object), ex·tem·po·rized, ex·tem·po·riz·ing.
Examples from the Web for extemporise
"Write a poetical letter," said Allen, beginning to extemporise in Hiawatha measure.Magnum Bonum|Charlotte M. Yonge
One who has made a turnip lantern in his youth will seldom be at a loss to extemporise a shelter for his bit of candle.
To reach this, it was necessary to extemporise by means of a rope a species of ratlins by which he could climb the rigging.The Dominion of the Air|J. M. Bacon
Lots of your fellow-passengers will have to camp out under any shelter they can extemporise.Nevermore|Rolf Boldrewood
The small jelly-speck, which we call the amœba, has no organs save what it can extemporise as occasion arises.Selections from Previous Works|Samuel Butler