tim ‧ ber ‧ line /ˈtɪmbəlaɪn $ -ər-/ BrE AmE noun [singular] technical
1 . the height above the level of the sea beyond which trees will not grow
2 . the northern or southern limit in the world beyond which trees will not grow
tim ‧ ber ‧ line /ˈtɪmbəlaɪn $ -ər-/ BrE AmE noun [singular] technical
1 . the height above the level of the sea beyond which trees will not grow
2 . the northern or southern limit in the world beyond which trees will not grow
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012