noun (used with a plural verb) Astronomy.
a collection of meteors comprising a meteor shower (Quadran·tid me·teor show·er) visible around January 31 and having its apparent origin in the constellation Boötes.

1875–80; < Neo-Latin Quadrant- (stem of Quadrāns, in Quadrāns (Mūrālis) (mural) quadrant, obsolete constellation name) + -id1 + -s3

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