trophosome

trophosome

[trof-uh-sohm, troh-fuh-]
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.

Origin:
1865–70; tropho- + -some3

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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