Definition/Meaning of capstone

• English - Noun: capstone ( plural capstones ) Any of the stones making up the top layer of a wall; a coping stone A crowning achievement , culmination or finishing touch 1904 , Guy Wetmore Carryl, Far from the Maddening Girls , chapter 5 “You see , I’ve never had a girl friend ,” I added , by way of topping the obelisk of silliness with the capstone of fatuity . 1969 , NASA , The Post-Apollo Space…
• English - Related terms: copestone
• English - See also: keystone
• English - Anagrams: opencast