PROLONG', v.t. [L.pro and longus. See Long.]1. To lengthen in time; to extend the duration of. Temperate habits tend to prolong life.2. To lengthen; to draw out in time by delay; to continue. Th' unhappy queen with talk prolong'd the night.3. To put off to a distant time. For I myself am not so well provided As else I would be, were the day prolong'd.4. To extend in space or length.