¹ Source: wiktionary.com
Definition of Nonconventional
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Lexicographical Neighbors of Nonconventional
Literary usage of Nonconventional
Below you will find example usage of this term as found in modern and/or classical literature:
1. Crude Oil: Uncertainty about Future Oil Supply Makes it Important to Develop by Jim Wells (2007)
"This is an important issue because oil from nonconventional sources is thought ... For example, IEA believes that oil from nonconventional sources—composed ..."