WordReference Random House Unabridged Dictionary of American English © 2025
in′frared′ astron′omy, 
  1. Astronomythe study of infrared radiation emitted by celestial objects.
  • 1960–65

Collins Concise English Dictionary © HarperCollins Publishers::
infrared astronomy
  1. the study of radiations from space in the infrared region of the electromagnetic spectrum
'infrared astronomy' also found in these entries (note: many are not synonyms or translations):
Holy Grail - jansky

Forum discussions with the word(s) "infrared astronomy" in the title:


Look up "infrared astronomy" at Merriam-Webster
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