Definition of radar astronomy in English:

radar astronomy

Syllabification: ra·dar as·tron·o·my

Entry from US English dictionary

noun

The branch of astronomy that uses radar to map the surfaces of planetary bodies in the solar system.

Definition of radar astronomy in:

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Word of the day hypnopompic
Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
adjective
relating to the state immediately preceding waking up