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trophosome

American  
[trof-uh-sohm, troh-fuh-] / ˈtrɒf əˌsoʊm, ˈtroʊ fə- /

noun

Zoology.

  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.

Etymology

Origin of trophosome

First recorded in 1865–70; tropho- + -some 3

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.