Word.ws English Dictionary

quintant

quintant noun: an instrument used for measuring angular distance, capable of measuring angles of up to 72 or 144 degrees.

Noun

quintant (plural quintants)

  1. (historical) An instrument used for measuring angular distance, capable of measuring angles of up to 72 or 144 degrees.
    • In former days octants, quintants and quadrants were in general use. The only basic difference between these instruments and the sextant is in the length of the arc.1944, Bart J[an] Bok, Frances W[oodworth] Wright, Basic Marine Navigation, Boston, M.A.; […]: Houghton Mifflin Company, page 242
    • McCarthy, it may be noted, had escaped when the Andamans were invaded, in a twelve-person party aboard a launch. He had navigated the party as far as Ceylon using a hydrographic quintant in lieu of a magnetic compass.1978, Ian Trenowden, Operations Most Secret, London: William Kimber, page 62
  2. (rare) A fifth of a circle.
    • Sectors are particularly denominated from the proportional part of the circle they contain; thus, a quadrant contains a 4th part of the circle; a quintant, the 5th part; a sextant, the 6th part; an octant, the 8th part; &c.1819, Robert Patterson, A Treatise of Practical Arithmetic: Intended for the Use of Schools; In Two Parts, Pittsburgh, P.A.: […] R. Patterson and Lambdin, page 85
    • An inspection of this diagram will show at once that as far as spine locomotion is concerned Lytechinus may creep in any direction with apparent indifference. That this indifference is probably a real one is shown more clearly in Fig. 2 in which is plotted for each of the five ambulacral quintants...1936, G[eorge] H[oward] Parker, Direction and Means of Locomotion in the Regular Sea-urchin Lytechinus, page 201

Examples of quintant in a sentence

  • Accuracy was ensured by combining the ancient quintant and chart used for two hundred years on the river and an aging echo-sounder.2015, Laura Bear, Navigating Austerity: Currents of Debt Along a South Asian River, Stanford, C.A.: Stanford University Press, →ISBN, page...
  • That this indifference is probably a real one is shown more clearly in Fig. 2 in which is plotted for each of the five ambulacral quintants the instances of creeping falling within each one.1936, G[eorge] H[oward] Parker, Direction and Means of Locomotion in the Regular Sea-urchin Lytechinus, page 201:
  • The dome rests on five pylons, equally spaced at 72°; two of the five quintants embrace the office building.1959 September, “Moving Day for the American Society for Metals”, in Metal Progress, volume 76, number 3, Metals Park, O.H.: American...

Forms of quintant

pluralquintants

Origin of quintant

Borrowed from Latin quintantem, accusative singular of quīntāns (“fifth part of something, fifth”).

Questions about quintant

What does quintant mean?
Quintant means an instrument used for measuring angular distance, capable of measuring angles of up to 72 or 144 degrees.
How do you use quintant in a sentence?
Accuracy was ensured by combining the ancient quintant and chart used for two hundred years on the river and an aging echo-sounder.
What part of speech is quintant?
Quintant is a noun.
What is the plural of quintant?
The plural of quintant is quintants.

Words near quintant in the dictionary

  1. Quintanar
  2. Quintanars
  3. Quintanilla
  4. Quintanillas
  5. quintans
  6. quintant
  7. quintants
  8. quintar
  9. quintaries
  10. quintars
  11. quintary

Source and license

Adapted from Wiktionary: quintant (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.

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