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boundary line

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noun

boundary(def 1).

partition line.

Origin of boundary line

First recorded in 1695–1705

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for boundary line

Historical Examples of boundary line

Mr. Raeburn determined most of the boundary-line of the present Park.
Your National Parks
Enos A. Mills
How determine the boundary-line to cleave this continent in twain?
Charles Sumner; His Complete Works, Volume XI (of 20)
Charles Sumner
The lyric element in them steps beyond the boundary-line of poetry.
mile Verhaeren
Stefan Zweig
And Miss Gresley said she did not think he was quite a bounder, only on the boundary-line.
Red Pottage
Mary Cholmondeley
For him there is no boundary-line between the two, the one is as real and actual as the other.
English Literature: Modern
G. H. Mair