vt 1  :  to force a fluid into (a vessel, cavity, or tissue) for preserving, hardening, or coloring structures  2  :  to introduce (as by injection or gravity flow) a fluid into (a living body) esp. for the purpose of restoring fluid balance, treating nutritional deficiencies or disease, or relieving pain : also  :  to treat (an individual) with injections .
 
 
 
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