Word.ws English Dictionary

ulp

/ʌlp/

ulp interjection: the sound of a person gulping in fear.

Interjection

  1. The sound of a person gulping in fear.
    • I sent her a text asking as nonchalantly as possible whether cows ever go for you. [...] The answer I got was, 'Occasionally they do, and they can be bloody scary.' Ulp.2009, Charlie Connelly, And Did Those Feet: Walking through 2000 Years of British and Irish History, London: Little, Brown and Company, →ISBN
    • And where would the Grammys be without Motown maverick Stevie Wonder, continuing his slide into musical irrelevance with a mind-boggling collaboration with, ulp, teen idols the Jonas Brothers, who massacred their own "Burnin' Up" and Stevie's "Superstition" with boyish aplomb.2009 February 10, Joel Rubinoff, “Train wreck keeps rollin’ along”, in Toronto Star, Toronto, Ont.: Toronto Star Newspapers, →ISSN, →OCLC, archived from the original on 12 Mar 2016
    Synonyms:
    gulp

Noun (1)

ulp (plural ulps)

  1. The value that the least significant digit of a floating-point number represents, used as a measure of accuracy in numeric calculations.
    • The basic concept of two vectors "agreeing to k ulps" (units in the last place) of each entry or of the largest entry allows us to express relationships among computed values and solutions at perturbed data.1980, Webb Miller, Celia Wrathall, “Software for Roundoff Analysis”, in Software for Roundoff Analysis of Matrix Algorithms, New York, N.Y.; London: Academic Press, →ISBN, section 4.2 (Rounding and...
    • Floating point operations are correct to within half an ulp, and the calculation of uvw by two floating point multiplications will be correct within about one ulp (ignoring second-order terms).1981, Donald E[rvin] Knuth, “Arithmetic”, in The Art of Computer Programming (Addison-Wesley Series in Computer Science and Information Processing), 2nd edition, volume 2 (Seminumerical Algorithms)...

Noun (2) capitalized: ULP

ULP (plural ULPs)

  1. (abbreviation, initialism) Initialism of ubiquitin-like protein.
  2. (abbreviation) Abbreviation of ultra-luminous pulsar.
  3. (US, abbreviation, initialism) Initialism of unfair labor practice.
    • Settlement of an ULP charge which required the parties to reopen the existing collective bargaining agreement did not remove the collective bargaining agreement as a bar.1996 May, The Judge Advocate General's School, “The Representation Process”, in The Law of Federal Labor-Management Relations, Charlottesville: US Army, JA 211, page 21

Examples of ulp in a sentence

  • Little—ulp—little red horns curving out of his brow.2012, Jennifer Stevenson, It’s Raining Angels and Demons (Slacker Demons; book 2), Lancaster, Oh.: Calliope, →ISBN:
  • The difference between two consecutive machine numbers is called an ulp (unit in the last place, i.e., one digit in the least significant place).1996, “Numerical Mathematics”, in Victor Adamchik et al., edited by Emily Martin, Mathematica 3.0 Standard Add-on Packages, Champaign...

Synonyms of ulp

Forms of ulp

pluralulps
pluralULPs

Origin of ulp

Imitative, or possibly a variant of gulp.

Abbreviation of unit in the last place or unit of least precision, coined in 1960 by Canadian mathematician and computer scientist William Kahan (born 1933).

Questions about ulp

What does ulp mean?
Ulp means the sound of a person gulping in fear.
How do you use ulp in a sentence?
Little—ulp—little red horns curving out of his brow.
What part of speech is ulp?
Ulp can be an interjection or a noun.
How do you pronounce ulp?
Ulp is pronounced /ʌlp/ (UK).

Words near ulp in the dictionary

  1. ulotrichan
  2. Ulotriches
  3. Ulotrichi
  4. ulotrichous
  5. ulotrichy
  6. ulp
  7. ULPA
  8. ulpan
  9. ulpanim
  10. ulpans
  11. Ulpha

Source and license

Adapted from Wiktionary: ulp (page history and authors); ULP (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-ulp.wav.

Cite this entry: “ulp.” Word.ws, https://word.ws/ulp. Based on Wiktionary, CC BY-SA 4.0.