Trophosome is an organ found in the coelomic cavity of the giant tube worm, Riftia pachyptila. Symbiotic bacteria in the trophosome oxidize sulfur found in the tube worm`s environment and produce organic molecules that the worm can use as an energy source. This process is known as chemosynthesis. ...
• (n.) The nutritive zooids of a hydroid, collectively, as distinguished from the gonosome, or reproductive zooids.
trophosome The nutritive zooids of a hydroid, collectively, as distinguished from the gonosome, or reproductive zooids.