impulse

[ im-puhls ]
/ ˈɪm pʌls /

noun

adjective

marked by or acting on impulse: an impulse buyer.
bought or acquired on impulse: To reduce expenses, shun impulse items when shopping.

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WHO SAID IT: A QUIZ ON PRESIDENTIAL WIT AND WISDOM

Think you know your presidents? Take this quiz and see if you can match the style, wit, and ideology of these memorable lines to the right POTUS.
Question 1 of 9
“I do believe that the buck stops here, that I cannot rely upon public opinion polls to tell me what is right. I do believe that right makes might and that if I am wrong, 10 angels swearing I was right would make no difference.”

Origin of impulse

1640–50; <Latin impulsus pressure, impulse, equivalent to im-im-1 + pul- (variant stem of pellere to push) + -sus, variant of -tus suffix of v. action
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for impulse

British Dictionary definitions for impulse

impulse
/ (ˈɪmpʌls) /

noun

Word Origin for impulse

C17: from Latin impulsus a pushing against, incitement, from impellere to strike against; see impel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for impulse

impulse
[ ĭmpŭls′ ]

n.

A sudden pushing or driving force.
A sudden wish or urge that prompts an unpremeditated act or feeling; an abrupt inclination.
The electrochemical transmission of a signal along a nerve fiber that produces an excitatory or inhibitory response at a target tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for impulse

impulse
[ ĭmpŭls′ ]

A sudden flow of electrical current in one direction.
An electrical signal traveling along the axon of a neuron. Nerve impulses excite or inhibit activity in other neurons or in the tissues of the body, such as muscles and glands.
The change of momentum of a body or physical system over a time interval in classical mechanics, equal to the force applied times the length of the time interval over which it is applied.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.