[ pen-tuh-guh-neez, -nees ]
/ ˌpɛn tə gəˈniz, -ˈnis /
a style of language characterized by the use of euphemisms, technical jargon, acronyms, and circumlocutions, used especially by people working in the U.S. military establishment.
Origin of Pentagonese
1950–55, Americanism; Pentagon + -ese
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019