- an environmentalist, especially one concerned with preserving forests.
Origin of tree-hugger
First recorded in 1985–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- informal, derogatory an environmental campaigner
C20: from the tactic of embracing trees to prevent their being felled
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