WordReference Random House Unabridged Dictionary of American English © 2025
High′ En′ergy Astrophys′ical Observ′atory, 
  1. Astronomyone of a series of three U.S. satellites launched (1977–79) into orbit around the earth and equipped with instruments for studying high-energy phenomena, as x-rays, gamma rays, and cosmic rays. Abbr.: HEAO

'High Energy Astrophysical Observatory' also found in these entries (note: many are not synonyms or translations):
HEAO

Forum discussions with the word(s) "High Energy Astrophysical Observatory" in the title:


Look up "High Energy Astrophysical Observatory" at Merriam-Webster
Look up "High Energy Astrophysical Observatory" at dictionary.com
  • Go to Preferences page and choose from different actions for taps or mouse clicks.

In other languages: Spanish | French | Italian | Portuguese | Romanian | German | Dutch | Swedish | Russian | Polish | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic

Advertisements
Advertisements
Report an inappropriate ad.
WordReference.com
WORD OF THE DAY
GET THE DAILY EMAIL!

Become a WordReference Supporter to view the site ad-free.