Siphon

(si' -fon). is longer I.than the bent other,at for the purpose of transferring a liquid from one ve el to another. Trocars and aspirating instruments constructed on this principle are called S. -trocars and S. -aspirators. 2. In biology, a tubular organ for the pa age of some fluid, as the inhalent and exhalent siphons of certain molluscs, or the sucking tube of various parasitic arthropods.