n. 1. a small glass bottle which has been or can be sealed hermetically by application of flame to a narrow opening at the top. aAn ampule usually has a narrow constriction near the top which can be scored and easily broken to open the ampule. Once opened, they cannot be hermetically re-sealed; thus the quantity contained is usually that which is to be used at once or within a short time. The contents are often sealed under vacuum to retard degradation by air. Syn. -- phial, vial, ampoule [ WordNet 1.5 ]
2. an ampule, or vial resembling an ampule, which contains a drug. [ PJC ]
‖ n.; pl.Ampullæ [ L. ] 1. (Rom. Antiq.) A narrow-necked vessel having two handles and bellying out like a jug. [ 1913 Webster ]
2. (Eccl.) (a) A cruet for the wine and water at Mass. (b) The vase in which the holy oil for chrism, unction, or coronation is kept. Shipley. [ 1913 Webster ]
3. (Biol.) Any membranous bag shaped like a leathern bottle, as the dilated end of a vessel or duct; especially the dilations of the semicircular canals of the ear. [ 1913 Webster ]
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