impulseとは 意味・読み方・使い方

発音

• IPA^(key): /ˈɪmpʌls/
• ハイフネーション: im‧pulse

名詞

impulse (複数形 impulses)

1. A thrust; a push; a sudden force that impels.
   • c. 1715-1716, Samuel Clarke, letter to Gottfried Wilhelm Leibniz

     All spontaneous animal motion is performed by mechanical impulse.

2. A wish or urge, particularly a sudden one prompting action.

   The impulse to learn drove me to study night and day.

   When I saw the new book, I couldn't resist the impulse to browse through it.

   • 1685, John Dryden, transl., “Preface”, in Sylvæ: Or, The Second Part of Poetical Miscellanies, London: […] Jacob Tonson, […], →OCLC; reprinted Menston, Yorkshire; London: Scolar Press, 1973, →ISBN, page 16:

     Theſe were my natural Impulses for the undertaking: […]

   • 1907, Harold Bindloss, chapter 20, in The Dust of Conflict‎^[1]:

     Tony's face expressed relief, and Nettie sat silent for a moment until the vicar said “It was a generous impulse, but it may have been a momentary one, […] .”

   • 1930, Norman Lindsay, Redheap, Sydney, N.S.W.: Ure Smith, published 1965, →OCLC, page 218:

     An impulse urged him to plant a sudden blow on it, by he forced himself to consider the impolicy of such an act.

3. (physics) The integral of force over time.

   The total impulse from the impact will depend on the kinetic energy of the projectile.

派生語

関連する語

• impel
• impulsion
• impulsive
• impulsively
• impulsiveness
• impulsivity
• impulsor
• pulse

動詞

impulse (三人称単数 現在形 impulses, 現在分詞 impulsing, 過去形および過去分詞形 impulsed)

1. (transitive) To impel; to incite.
   • 1614, Walter Ralegh [i.e., Walter Raleigh], The Historie of the World […], London: […] William Stansby for Walter Burre, […], →OCLC, (please specify |book=1 to 5):

     With that force so impulsed and prest they are carried under the deepe Ocean.

参照

• “impulse”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
• “impulse”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• Douglas Harper (2001–2023), “impulse”, in Online Etymology Dictionary.

Latin

Participle

impulse

1. vocative masculine singular of impulsus