trophosome

[ trof-uh-sohm, troh-fuh- ]
/ ˈtrɒf əˌsoʊm, ˈtroʊ fə- /
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noun Zoology.

an organ in deep-sea tube worms that is colonized by bacteria supplying the host worm with food and energy.
a similar organ in other marine worms.

Origin of trophosome

First recorded in 1865–70; tropho- + -some3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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