Cite
 

Meaning of prolong

pro•long

Pronunciation: (pru-lông', -long'), [key]
— v.t.
  1. to lengthen out in time; extend the duration of; cause to continue longer: to prolong one's stay abroad.
  2. to make longer in spatial extent: to prolong a line.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: