mainline

(redirected from Main-line)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

mainline

(mān′līn′)
v. main·lined, main·lining, main·lines Informal
v.tr.
To inject (an illegal or addictive drug, such as heroin) directly into a major vein.
v.intr.
To inject a drug intravenously.

main′lin′er n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

mainline

A regional term most commonly used as a verb in the drug subculture, meaning to inject a drug, usually understood to be illicit (e.g., heroin).
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

mainline

Drug slang verb To inject a drug
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
DELAYS on the trains are nothing new and perhaps that explains why there are so many delays in making decisions on the future of the railways, especially our main-line services up to Paddington.
The A1 Steam Locomotive Trust has built what is the first new main-line steam locomotive in Britain for almost 50 years at Darlington Locomotive Works.