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IRAS

Definition of IRAS
  • a satellite launched in 1983 to map the distribution of infrared radiation in the sky.

Origin:

abbreviation of Infrared Astronomical Satellite

IRAS in other Oxford dictionaries

Definition of IRAS in the US English dictionary

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synodic

/ sɪˈnɒdɪk /
adjective
relating to or involving the conjunction of celestial objects …