old growth

old-growth

(ŏld′grōth′)adj. Of, related to, or being a forest characterized by a large proportion of old trees, a high level of structural complexity, and a history of little human disturbance.

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old growth n.

Thesaurus

Noun

1.

old growth - forest or woodland having a mature or overly mature ecosystem more or less uninfluenced by human activityvirgin forestforest, woods, wood - the trees and other plants in a large densely wooded area