We don't have any synonyms for Orion's Belt yet.
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Definition of Orion's Belt:
(n) :
(astronomy) A bright asterism located near the celestial equator, consisting of three bright stars lined up and visibly close together.
(n) :
Alternative letter-case form of Orion's Belt. [(astronomy) A bright asterism located near the celestial equator, consisting of three bright stars lined up and visibly close together.]