main line
noun
a principal line or route of a railroad, as contrasted with a branch or secondary one.
a principal highway.
Slang.
- 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
First recorded in 1835–45
Words nearby main line
main diagonal,
main drag,
main entry,
main gauche,
main idea,
main line,
main man,
main market,
main memory,
main plane,
main royal mast
Definition for main line (2 of 2)
Main Line
noun
a fashionable residential district west of Philadelphia.
any fashionable district where socially prominent people live.
OTHER WORDS FROM Main Line
Main-Line, adjective Main-Lin·er, nounExample sentences from the Web for main line
British Dictionary definitions for main line
main line
noun
railways
- the trunk route between two points, usually fed by branch lines
- (as modifier)a main-line station
US
a main road
verb mainline
(intr) slang
to inject a drug into a vein
adjective mainline
having an important position, esp having responsibility for the main areas of activity