释义 |
pen·ta·gon I. \ˈpentə̇ˌgän, -tēˌ- sometimes -tə̇gən or -tēg-\ noun (-s) Etymology: Late Latin pentagonum, from Greek pentagōnon, from neuter of pentagōnos five-angled, from penta- + -gōnos (from gōnia angle) — more at -gon : a polygon having five sides — see area table II. adjective Usage: usually capitalized Etymology: from the Pentagon, pentagonal building (erected 1943) in Arlington Va., that is the headquarters of the United States Dept. of Defense and other government offices : of or relating to the Pentagon building especially as symbolizing the United States military, naval, and air force leadership concentrated there |