Meaning of trophosome

troph•o•some

Pronunciation: (trof'u-sōm", trō'fu-), [key]
— n. Zool.
  1. an organ in deep-sea tube worms that is colonized by bacteria supplying the host worm with food and energy.
  2. a similar organ in other marine worms.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.