a sealed glass or plastic bulb containing solutions for hypodermic injection.
Historical Examples

The chief sign of the Canterbury pilgrimage was an ampul or ampulla or flask of lead or pewter.
A Handbook of Pictorial History Henry W. Donald


sealed container holding a dose of medicine, 1907, from French ampul (1886), from Latin ampulla (see ampoule). A modern borrowing of the word represented by Middle English ampoule.


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