Definition of phoresy in English:

phoresy

noun

Zoology
  • An association between two organisms in which one (e.g., a mite) travels on the body of another, without being a parasite.

    • ‘The only means of dispersal available to them are walking, passive aerial dispersal, or phoresy.’
    • ‘This behavior by the lice is known as phoresy and is in effect a risky process of redistribution in which the lice get to travel freely on the flies.’

Origin

1920s: from French phorésie, from Greek phorēsis being carried.

Pronunciation:

phoresy

/ˈfôrəsē/