Definition of "demarcate" [de•mar•cate]

• To set the boundaries of; delimit. (verb-transitive)
• To separate clearly as if by boundaries; distinguish: demarcate categories. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "In PyrT 1.ix, I think we could even get away with assigning tulerase the meaning 'they brought' instead of 'demarcate'."
• "One side denies while the other side fails to demarcate the difference between natural and man man causation."
• "�Now there are fears that this fragile peace could unravel, unless both sides make up for lost time by figuring out a way to share oil revenue, demarcate borders and prepare for a vote that's likely to split the country into two."