释义 |
WordReference Random House Learner's Dictionary of American English © 2024pen•ta•gon /ˈpɛntəˌgɑn/USA pronunciation n. - Mathematics[countable] a flat figure having five angles and five sides.
- Government the Pentagon:
- [proper noun; the + ~] a building in Arlington, Va., built in the form of a pentagon and containing the U.S. Department of Defense.
- [uncountable] the U.S. Department of Defense;
the U.S. military establishment.
pen•tag•o•nal /pɛnˈtægənəl/USA pronunciation adj. WordReference Random House Unabridged Dictionary of American English © 2024pen•ta•gon (pen′tə gon′),USA pronunciation n. - Mathematicsa polygon having five angles and five sides.
- Government the Pentagon:
- a building in Arlington, Virginia, having a plan in the form of a regular pentagon, containing most U.S. Defense Department offices.
- the U.S. Department of Defense; the U.S. military establishment.
- Greek pentágōnon, noun, nominal use of neuter of pentágōnos five-angled. See penta-, -gon
- Late Latin pentagōnum
- 1560–70
pen•tag•o•nal (pen tag′ə nl),USA pronunciation adj. pen•tag′o•nal•ly, adv. |