Definition of timberline
: the upper limit of arboreal growth in mountains or high latitudes —called also tree line
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1867
First Known Use of timberline
1867
TIMBERLINE Defined for English Language Learners
timberline
play
noun
Definition of timberline for English Language Learners
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: an imaginary line on a mountain or high area of land that marks the level above which trees do not grow
TIMBERLINE Defined for Kids
timberline
play
noun
tim·ber·line
\ˈtim-bər-ˌlīn\
Definition of timberline for Students
: the upper limit beyond which trees do not grow (as on mountains)
Learn More about timberline
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See words that rhyme with timberline Britannica.com: Encyclopedia article about timberline
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