Definition of "plowshare" []

• The cutting blade of a plow; a share. (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.

• "The Volna, that formidable Cold War sword, had proved a less than reliable plowshare, making for a failure that was bitterly beside the point: the chemically propelled brute-force rocket was the trouble, not the beautiful Icarian blades that never got a chance to be tested."
• "They will beat their swords into plowshare s
 and their spears into pruning hooks."
• "I regret the transformation of civil religion into a divider, the plowshare melted back down into swords in the furnace of the culture wars."