pycnometer

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/pɪkˈnɒmɪtə(ɹ)/

noun

A vessel of precisely known volume used by weighing to determine the specific gravity or relative density of a liquid.

Scrabble 19

Meanings

nounpycnometer (plural pycnometers)

plural pycnometers

  1. metrologyA vessel of precisely known volume used by weighing to determine the specific gravity or relative density of a liquid.
    1 more example

    As Galileo showed in his tract La Bilancetta, or “The Little Balance,” a scientist of Archimedes’ stature could have achieved a far more precise result using his own law of buoyancy and an accurate scale, something far more common in the ancient world than a very precise pycnometer, which is used to measure displacement.

    2006 December 8, David Biello, “Fact or Fiction?: Archimedes Coined the Term ‘Eureka!’ in the Bath”, in Scientific American

    Synonyms: specific gravity bottle

Synonyms & antonyms

nounA vessel of precisely known volume used by weighing to determine the specific gravity or relative density of a liquid.

Origin

  1. Ancient Greekπυκνός“dense”
  2. Englishpycnometer

From Ancient Greek πυκνός (puknós, “dense”) and μέτρον (métron, “measure”). By surface analysis, pycno- + -meter.

Full word history & related roots →

Translations

French pycnomètre
  • pycnomètrevessel used to determine a liquid’s specific gravity
Greek πυκνόμετρο
  • πυκνόμετρο (pyknómetro)vessel used to determine a liquid’s specific gravity
Cite this entry
APA

pycnometer. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/pycnometer

MLA

“pycnometer.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pycnometer. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “pycnometer,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/pycnometer.

Source: pycnometer on Wiktionary, CC BY-SA 4.0.