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Definition of treeline

treeline

/ˈtriː.laɪn/
tree · line
Plural:treelines
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treeline Lexical Profile

treeline Game Scores & Validity

• noun

1

The ecological boundary of altitude or latitude beyond which trees are unable to grow due to cold temperatures, insufficient moisture, or lack of soil.

Example

"As the hikers ascended above the alpine treeline, the dense pine forest gave way to rocky tundra and low shrubs."

2

The visible outer edge of a forest, wood, or row of trees bordering an open field, clearing, or body of water, or silhouetted against the sky.

Example

"A small herd of deer emerged quietly from the distant treeline to graze in the meadow at dusk."

Synonyms
View all synonyms for treeline

• Rhymes for treeline

• Nearby Words

treehouse
treeless
treelike
treeline
treepie
treeswift
treetop

Cite this Entry

Wordmom. (2026). Definition of Treeline. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/treeline
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