speedball

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speedball

(spēd′bôl′)
n.
Slang An intravenous dose of cocaine mixed with heroin or an amphetamine.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

speedball

A generic term for certain drugs that are abused alone or combined—e.g., heroin mixed with cocaine; amphetamine; methylphoccidi (ritalin) mixed with heroin.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

speedball

A slang term for a combination of cocaine and heroin taken intravenously.
Medical Dictionary, © 2009 Farlex and Partners

speedball

A slang term for a dose of cocaine and heroin taken intravenously.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005