Definition of IRAS in English:

IRAS

Syllabification: IRAS
Pronunciation: /ˈīˌras
 
/
A satellite launched in 1983 to map the distribution of infrared radiation in the sky.

Origin

abbreviation of Infrared Astronomical Satellite.

Definition of IRAS in:

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Word of the day apposite
Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something