URSA
\ˈɜːsə], \ˈɜːsə], \ˈɜː_s_ə]\
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n. [Latin] A boar. Ursa Major, the Great Bear, one of the constellations, situated near the pole—it contains the stars which form the Dipper or Charles’ Wain. Ursa Minor, the Little Bear, the constellation nearest the north pole —it contains the pole-star, which is situated in the extremity of the tail.
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SQ10,643
- A serotonin antagonist with limited antihistaminic, anticholinergic, and immunosuppressive activity.