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excretory system

Cultural  

  1. The systems that excrete wastes from the body. For example, the system of organs that regulates the amount of water in the body and filters and eliminates from the blood the wastes produced by metabolism. The principal organs of the excretory system are the kidneys, ureters, urethra, and urinary bladder.

Example Sentences

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Their excretory system, or protonephridia, consists of two tubules connected to a highly branched tube system.

From Textbooks • Jun. 9, 2022

Their excretory system consists of two tubules connected to a highly branched duct system.

From Textbooks • Jun. 9, 2022

What is the “fight or flight” response, and what is its effect on the excretory system?

From Textbooks • Jun. 9, 2022

It was like having a ticking time bomb lodged in your excretory system.

From Salon • Sep. 16, 2013

An excretory system has appeared to carry off the waste of the muscles and nerves.

From The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 by Tyler, John Mason

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.