a person who is concerned with the maintenance of ecological balance and the conservation of the environment
3.
a person concerned with issues that affect the environment, such as pollution
enviro in American English
(enˈvairou)
nounWord forms: plural-ros
informal
an environmentalist
Word origin
[1985–90; by shortening]This word is first recorded in the period 1985–90. Other words that entered Englishat around the same time include: Human Genome Project, antisense, codependent, cohousing, golden handcuffs