(physics) A complex generalisation of spacetime

plural of Orris

(pharmacology) A yellow crystalline broad-spectrum tetracycline antibiotic C₂₂H₂₄N₂O₉ that is produced by a soil actinomycete (Streptomyces rimosus) and works by interfering with bacteria's ability...

A surname from French. / A hamlet in Stainmore parish, Eden district, Cumbria, England, historically in Westmorland (OS grid ref NY8411).