Malpighian tubule

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Malpighian tubule

n.
Any of the tubules that extend from the posterior portion of the digestive tract of insects and certain other arthropods and that absorb waste material from the hemolymph for excretion. Also called Malpighian tube.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.