different between impulse vs crotchet

English

Etymology

Borrowed from Middle French impulser, from Latin impulsus.

For spelling, as in pulse, the -e (on -lse) is so the end is pronounced /ls/, rather than /lz/ as in pulls, and does not change the vowel (‘u’). Compare else, false, convulse.

Pronunciation

• IPA^(key): /??mp?ls/
• Hyphenation: im?pulse

Noun

impulse (plural 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.
   • 1692?, John Dryden, Sylvae (translations), Preface

     These were my natural impulses for the undertaking.
3. (physics) The integral of force over time.

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

Derived terms

• impulse buy
• nerve impulse
• on impulse

Related terms

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

Translations

Verb

impulse (third-person singular simple present impulses, present participle impulsing, simple past and past participle impulsed)

1. (obsolete) To impel; to incite.

   (Can we find and add a quotation of Alexander Pope to this entry?)

References

• impulse in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• impulse in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• Douglas Harper (2001–2021) , “impulse”, in Online Etymology Dictionary

French

Pronunciation

• Homophones: impulsent, impulses

Verb

impulse

1. first-person singular present indicative of impulser
2. third-person singular present indicative of impulser
3. first-person singular present subjunctive of impulser
4. third-person singular present subjunctive of impulser
5. second-person singular imperative of impulser

Italian

Verb

impulse

1. third-person singular past historic of impellere

Latin

Participle

impulse

1. vocative masculine singular of impulsus

Spanish

Noun

impulse m (plural impulses)

1. push, shove

Verb

impulse

1. First-person singular (yo) present subjunctive form of impulsar.
2. Formal second-person singular (usted) present subjunctive form of impulsar.
3. Third-person singular (él, ella, also used with usted^?) present subjunctive form of impulsar.

English

Etymology

From Old French crochet (“small hook”), from croc + -et (diminutive suffix), from Old Norse krókr (“hook”). The musical note was named so because of a small hook on its stem in black notation (in modern notation this hook is on the quaver/eighth note).

Pronunciation

• (General American) IPA^(key): /?k??t?.?t/
• (Received Pronunciation) IPA^(key): /?k??t?.?t/

Noun

crotchet (plural crotchets)

1. (music) A musical note one beat long in 4/4 time.
2. (obsolete) A sharp curve or crook; a shape resembling a hook
3. (archaic) A whim or a fancy.
   • 1847, Thomas De Quincey, Secret Societies (published in Tait's Edinburgh Magazine):

     He ruined himself and all that trusted in him by crotchets that he could never explain to any rational man.

4. A forked support; a crotch.
5. (military, historical) An indentation in the glacis of the covered way, at a point where a traverse is placed.
6. (military) The arrangement of a body of troops, either forward or rearward, so as to form a line nearly perpendicular to the general line of battle.
7. (printing) A square bracket.

Synonyms

• (musical note): quarter note (US)

Derived terms

• crotchety

Translations

Verb

crotchet (third-person singular simple present crotchets, present participle crotcheting, simple past and past participle crotcheted)

1. (obsolete) to play music in measured time

   • The nimblest crotcheting musician

2. Archaic form of crochet (knit by looping)

Norman

Etymology

From Old French crochet (“small hook”), from croc (with diminutive suffix -et), from Old Norse krókr (“hook”).

Noun

crotchet m (plural crotchets)

1. (Jersey, punctuation) bracket

Derived terms

• crotchet cârré (“square bracket”)