The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
transitive verb de·re·pressed, de·re·press·ing, de·re·press·es
To induce the operation of (a gene) by deactivating the repressor.
- deˌre·presˈsion noun