par·a·bi·o·sis (p?r??-b?-??s?s)n. pl. par·a·bi·o·ses (-s?z) 1. The natural or surgical union of anatomical parts of two organisms, usually involving exchange of blood, as in the development of conjoined twins or in certain transplant operations.2. A temporary suspension of conductivity or excitability in a nerve.par?a·bi·ot?ic (-?t??k) adj.par?a·bi·ot?i·cal·ly adv.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.parabiosis (?pær?ba????s?s) n1. (Biology) the natural union of two individuals, such as Siamese twins, so that they share a common circulation of the blood2. (Biology) a similar union induced for experimental or therapeutic purposes[C20: from para-1 + Greek bi?sis manner of life, from bios life] parabiotic adjCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014par?a?bi?o?sis (?pær ? ba??o? s?s, -bi-) n. the physiological or anatomical union of two individuals. [1905?10] par`a?bi?ot?ic (-??t ?k) adj. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.parabiosisthe uniting of two individual organisms or animals anatomically and physiologically, either under experimental or natural conditions. ? parabiotic, adj.See also: Joiningthe uniting of two individual organisms or animals anatomically and physiologically, under either experimental or natural conditions. ? parabiotic, adj.See also: Biology-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.