• WordNet 3.6
    • v impel cause to move forward with force "Steam propels this ship"
    • v impel urge or force (a person) to an action; constrain or motivate
    • ***
Webster's Revised Unabridged Dictionary
    • v. t Impel To drive or urge forward or on; to press on; to incite to action or motion in any way. "The surge impelled me on a craggy coast."
    • ***
Century Dictionary and Cyclopedia
    • impel To drive or urge forward; press on; incite or constrain to action in any way: as, steam is the impelling force of a locomotive.
    • impel Synonyms Prompt, Induce, etc. (see actuate); to influence, push on, force on, move, lead, set on. (See list under incite.)
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Impel im-pel′ to urge forward: to excite to action: to instigate
    • pr.p Impel impel′ling; pa.p. impelled′
    • n Impel a power that impels
    • ***


  • Marcel Proust
    “Impelled by a state of mind which is destined not to last, we make our irrevocable decisions”
  • Ambrose Bierce
    “Duty. That which sternly impels us in the direction of profit, along the line of desire.”
  • Charles Caleb Colton
    “Happiness, that grand mistress of the ceremonies in the dance of life, impels us through all its mazes and meandering, but leads none of us by the same route”
  • Erich Fromm
    “The quest for certainty blocks the search for meaning. Uncertainty is the very condition to impel man to unfold his powers.”


Webster's Revised Unabridged Dictionary
L. impellere,; pref. im-, in + pellere, pulsum, to drive. See Pulse a beat, and cf. Impulse


In literature:

The fire spread in a semicircle, and seemed to create a wind which impelled it on with resistless fury.
"In The Boyhood of Lincoln" by Hezekiah Butterworth
Then, too, there was something in the prospect spread out before them that impelled tranquillity.
"The Long Portage" by Harold Bindloss
They are impelled by six or twelve paddles.
"The Sailor's Word-Book" by William Henry Smyth
He was impelled to an eager 'No, no!
"Hopes and Fears scenes from the life of a spinster" by Charlotte M. Yonge
Outside influences go far toward impelling life's voyager on his course.
"The Witch of Salem" by John R. Musick
Who can tell what impelled her to make a living gem like this, as odd as it is beautiful?
"Our Bird Comrades" by Leander S. (Leander Sylvester) Keyser
Impelled by these encomiums, I resolved to see you or die.
"Eastern Tales by Many Story Tellers" by Various
Tom Curtis felt impelled to go back home.
"Madge Morton's Victory" by Amy D.V. Chalmers
Love, only love, impelled men to kill each other.
"The Dead Command" by Vicente Blasco Ibáñez
I seemed impelled to go farther and try to elucidate the mystery.
"The Stretton Street Affair" by William Le Queux

In poetry:

So potent is the subtle spell
That clothes such masses with a mind;
So strong the instincts which impel
Their lover answering love to find!
"At Hochfinstermunz" by John Lawson Stoddard
'Lorn, listless, like a wither'd flower,
Blown o'er the plain by every blast,
Impell'd by fancy's fitful power,
The lovely, luckless, victim past.
"Bertram And Anna" by Thomas Gent
And many a veering sail was there,
Impell'd by the south wind's force;
And changeful e'en as the waves that bare,
Was the vessel's troubled course.
"The Gale" by Caroline Fry
Nor lays she for the sluggish breeze
That fain would seek a night's repose.
Impelled by steam she beats the seas,
With her huge arm thus on she goes.
"Descriptive Voyage From New York To Aspinwall" by James Madison Bell
But the steep rocks imprison the deep,
When the waves are impell'd to the shore;
A watch they incessantly keep,
Nor are mov'd by the sound of its roar.
"A Summer's Evening's Contemplation" by Elizabeth Bath
Stern Monarch of the winds! admit my prayer;
Awhile thy fury check, thy storms confine;
No trivial blast impels the passive air,
But brews a tempest in a breast like mine.
"Elegy XVII. He Indulges the Suggestions of Spleen.-- An Elegy to the Winds" by William Shenstone

In news:

Philadelphia Mixing Solutions Ltd (PMSL) was selected to present its new impeller design technology at the recent North American Mixing Forum Mixing XXIII in Mayan Riviera, Mexico, June 17-23.
How can I account for the multiple impeller difference when scaling.
Are power requirements for multiple impellers additive .
With multiple impellers on a single shaft, are the effects on total power additive .
For example, if two impellers are of the same type, would the power be determined as P = Np*rho*N^3*(D1^5+D2^5).
Backward Curved Impellers Now Available for Uninterruptible Power Supply, Variable Frequency Drive, and Inverter Applications.
I have a known volume and impeller power number.
Grinder eliminates debris from pump impeller, reduces maintenance costs.
Can you offer advice on a horizontal ribbon impeller.
I need to model a horizontal ribbon impeller mixing a viscous fluid in CFD.
What type of impeller will be recommended.
Can I simplify mixing calculations for a bottom- mounted impeller.
Cornell Pump Company's Cutter Pump reduces ragging and fouling of impellers.
Flexible impeller pumps provide an efficient solution to most marine pumping needs.
Open Channel Impeller Pumps combined with close internal clearances to allow for high efficiency clean water pumping with some solids handling capability.

In science:

A deterministic and geometrical quantum theory impels the resolution of wave-particle duality .
Spinors in Quantum Geometrical Theory
This fact contrasts with the laws of gravity introduced by Newton in 1687 that remained unmodified untill “impelled” by the birth of special relativity, lead to the theory of general relativity in 1916.
Rigid motions and generalized Newtonian gravitation. Lost in Translation
As satisfying as this agreement might be, it should impell us to action, not complacency.
Tracking The Baryon Density From The Big Bang To The Present
Let now q be any line terminating in the point p, supposed without the body, then −( dV dq ) = the force tending to impel a particle of positive electricity in the direction of q, and tending to increase it.
An Essay on the Application of mathematical Analysis to the theories of Electricity and Magnetism
For let x, y, z, be the rectangular co-ordinates of any particle p in the interior of one of the bodies; then will −( dV dx ), be the force with which p is impelled in the direction of the co-ordinate x, and tending to increase it.
An Essay on the Application of mathematical Analysis to the theories of Electricity and Magnetism