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[fawr-uh-see] /ˈfɔr ə si/
noun, Zoology.
(among insects and arachnids) a nonparasitic relationship in which one species is carried about by another.
Origin of phoresy
1920-25; < New Latin phoresia < Greek phórēs(is) a wearing (phorē-, verbid stem of phoreîn, durative of phérein to bear1 + -sis -sis) + -ia -y3 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for phoresy


an association in which one animal clings to another to ensure movement from place to place, as some mites use some insects
Word Origin
C20: from New Latin phoresia, from Greek phorēsis, from pherein to carry
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for phoresy

1914, from French phorésie (1896), from Greek phoresis "being carried," from pherein "to carry" (see infer).

Online Etymology Dictionary, © 2010 Douglas Harper
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phoresy in Medicine

phoresy phor·e·sy (fôr'ĭ-sē)
A symbiotic relationship, especially among arthropods and some fishes, in which one organism transports another organism of a different species.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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