Definition of "sapper" [sap•per]

• A military engineer who specializes in sapping and other field fortification activities. (noun)
• A military engineer who lays, detects, and disarms mines. (noun)

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.

• "While with this unit, Source received training in sapper techniques."
• "There was a psychological moment as the crouching man came up into the trench with his rifle and bayonet, when his chin was in the perfect position: moreover, the sapper was a full back of merit."
• "The tome ended his England career because he criticised the then manager, Clive Woodward, and was deemed an energy sapper; he once admitted that he had a personality trait where he could go from being relatively calm to relatively insane quite quickly, describing his behaviour as sometimes less than ideal."