Also found in: Thesaurus, Medical, Encyclopedia.


Containing no lead; lead-free.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Automotive Engineering) US (of petrol) not leaded; unleaded
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ʌnˈlɛd ɪd)

1. (of gasoline) containing no tetraethyllead.
2. not separated or spaced with leads, as lines of type.
3. an unleaded product.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.nonleaded - (of gasoline) not containing tetraethyl lead; "lead-free gasoline"
leadless, unleaded - not treated with lead; "unleaded gasoline"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Mentioned in ?
References in periodicals archive ?
We can thank CCI/Speer and Winchester for allocating the resources to their research and development departments to cook up some nonleaded, commercially viable loads.
The plant eliminated 20,300 pounds of lead by transitioning from the use of leaded to nonleaded glass, the EPA said.
A growing number of devices today are in the form of fine-pitch arrays of leaded and nonleaded SM packages such as quad flat pack, and ball grid array.