Medical Dictionary
proboscis
noun pro·bos·cis \prə-ˈbäs-əs, -kəs\
plural pro·bos·cis·es also pro·bos·ci·des \-ˈbäs-ə-ˌdēz\
Medical Definition of PROBOSCIS
: any of various elongated or extensible tubular organs or processes especially of the oral region of an invertebrate: as a : a sucking organ of insects (as houseflies or mosquitoes) that is often also adapted for piercing b : one of the complex protrusible holdfasts on the scolex of certain tapeworms
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