vehicle (ve´hi-kl)

1. An excipient or a menstruum; a substance, usually without therapeutic action, used as a medium to give bulk for the administration of medicines. 2. An inanimate substance (e.g., food, milk, dust, clothing, instrument) by which or upon which an infectious agent passes from an infected to a susceptible host; v.'s consequently act as important sources of infection. [L. vehiculum, a conveyance, fr. veho, to carry]


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