v. To urge a person; to press on; to incite to action or motion via intrinsic motivation. (contrast with propel, to compel or drive extrinsically)
v. To drive forward; to propel an object.
the GNU version of the Collaborative International Dictionary of English
v. To drive or urge forward or on; to press on; to incite to action or motion in any way.
The Century Dictionary and Cyclopedia
To drive or urge forward; press on; incite or constrain to action in any way: as, steam is the impelling force of a locomotive.
Synonyms Prompt, Induce, etc. (see actuate); to influence, push on, force on, move, lead, set on. (See list under incite.)
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. cause to move forward with force
v. urge or force (a person) to an action; constrain or motivate
Word Usage
"Whether his new emphasis on investment, along with restructured corporate taxes, will actually impel our multinational corporations to produce their goods at home is by no means clear, as I argue in my op-ed column on tomorrow's page."