[ 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 Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for phoresy


/ (ˈfɒrəsɪ) /


an association in which one animal clings to another to ensure movement from place to place, as some mites use some insects

Word Origin for phoresy

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

Medicine definitions for phoresy


[ fôrĭ-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.