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fatbody

[fat-bod-ee]
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noun, plural fat·bod·ies. Entomology.
  1. a diffuse tissue of insects, having numerous functions including food storage, metabolism, and storage of wastes and in some insects modified as a light-producing organ.
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Also fat bod·y, fat-bod·y.

Origin of fatbody

First recorded in 1865–70; fat + body
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for fat body

fat body

noun zoology
  1. a mass of fatty tissue in insects, used as an energy source during hibernation and metamorphosis
  2. a similar tissue mass in amphibians and reptiles
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012