verb (used without object), main·lined, main·lin·ing.Slang.
verb (used with object), main·lined, main·lin·ing.Slang.
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Origin of mainline
Words nearby mainline
Definition for mainline (2 of 3)
- a prominent and readily accessible vein of the body that may be used for a narcotic's injection.
- the act of mainlining.
Origin of main line
Definition for mainline (3 of 3)
OTHER WORDS FROM Main LineMain-Line, adjectiveMain-Liner, noun
Example sentences from the Web for mainline
And mainline Protestant denominations find themselves shrinking.
Mainline Protestant denominations are in marked decline and Evangelical Christianity is in slow retrograde.
This collaboration is different from our mainline collection, but the PETER PILOTTO woman is the same.Peter Pilotto Makes Target Go Pop in Latest Collaboration|The Fashion Beast Team|February 7, 2014|DAILY BEAST
The decline of mainline Protestantism has also undermined this sort of prudent, empirically-minded Republicanism.
Mainline Republicans like Mitch McConnell backed the losing candidate in the Republican primary.Midterm Madness: McCain, Reid, & 10 Hot Races to Watch|Samuel P. Jacobs|August 22, 2010|DAILY BEAST
Sidetrack your emotions if you can and stick to the mainline!Cleek of Scotland Yard|Thomas W. Hanshew
British Dictionary definitions for mainline
- the trunk route between two points, usually fed by branch lines
- (as modifier)a main-line station