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.

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Example Sentences

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

From Textbooks • Jun. 9, 2022

Based on these findings, how may the excretory system of one of the terrestrial organisms listed above change if it evolved to spend most of its time in water?

From Textbooks • Jun. 9, 2022

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

From Salon • Sep. 16, 2013

The excretory system is also developing: the kidneys are well-formed, and meconium, or fetal feces, begins to accumulate in the intestines.

From Textbooks • Jun. 19, 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