To discharge or excrete from the body.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "egest" in a sentence
"The mouth is typically the only opening to the digestive tract, they use the same opening to both ingest food and egest waste."
"Another possibility is that zooplankton eat the bacteria, and later egest them unharmed."