Ampule

am;poulevariant(s): or am;pule also am;pul function: noun etymology: middle english ampulle flask, from old english amp; anglo-french; old english ampulle amp; anglo-french ampuille, from latin ampulladate: 1907 1 : a hermetically sealed small bulbous glass vessel that is used to hold a solution for hypodermic injection2 : a vial resembling an ampoule