of, relating to, or based on the trickle-down theory: the trickle-down benefits to the local community.
Origin of trickle-down
First recorded in 1950–55; adj. use of verb phrase trickle down
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of or concerning the theory that granting concessions such as tax cuts to the rich will benefit all levels of society by stimulating the economy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012