hydrometer

English

Alternative forms

• hydrometre (nonstandard)

Etymology

Etymology tree

Proto-Indo-European *wed-

Proto-Indo-European *-r̥

Proto-Indo-European *wódr̥

Proto-Hellenic *údōr

Ancient Greek ῡ̆̔́δωρ (hū̆́dōr)

Ancient Greek ῠ̔δρο- (hŭdro-)lbor.

English hydro-

Proto-Indo-European *med-

Proto-Indo-European *meh₁-

Proto-Indo-European *-tḗr

Proto-Indo-European *-om

Proto-Indo-European *-trom

Proto-Hellenic *-tron

Ancient Greek -τρον (-tron)

Ancient Greek μέτρον (métron)lbor.

French -mètrebor.

English -meter

English hydrometer

From hydro- + -meter.

Pronunciation

• IPA^(key): /haɪˈdɹɑːmɪtɚ/

• Audio (Southern England):

  (file)

• Rhymes: -ɒmɪtə(ɹ)

Noun

hydrometer (plural hydrometers)

1. An instrument that floats in a liquid and measures its specific gravity on a scale.

   Synonym: areometer

   Coordinate terms: specific gravity bottle, pycnometer

   • 1806, Peter Jonas, “Method of Ascertaining the Strength of Spiritous Liquors by Clarke’s Hydrometer”, in The Genuine Art of Gauging Made Easy and Familiar; Exhibiting All the Principal Methods Actually Practised by the Officers of His Majesty’s Revenue of Excise and Customs: [...], London: Printed [by C[harles] Whittingham] for Dring and Fage, […], →OCLC, page 367:

     [E]ach degree of the hydrometer, when at or near proof, is about a quart in a hundred gallons stronger or weaker, as the hydrometer vibrates under or over the silver speck or sight on the index or upper stem; at the intermediate or strong overproofs, is about a pint in ditto; and at the low underproofs is about three pints in ditto.

   • 1843, John Holmes Agnew, Eclectic Museum of Foreign Literature, Science and Art:

     On the wall were hanging thermometers, barometers, and hydrometers, and every other sort of ometer, numberless, dusty, and mysterious; […]

Derived terms

• Twaddell hydrometer
• thermohydrometer

Translations

instrument — see also areometer

• Catalan: hidròmetre m
• Chinese:

  Mandarin: 比重計 / 比重计 (zh)

• Esperanto: likvodensomezurilo, hidrometro
• Finnish: hydrometri (fi)
• French: hydromètre (fr) m
• Greek: υδρόμετρο (el) n (ydrómetro)
• Malay: jangka tumpat, hidrometer
• Spanish: hidrómetro m
• Tagalog: danumsukod
• Turkish: hidrometre (tr), sıvıölçer (tr)

See also

• hygrometer

Anagrams

• hydrometre

Swedish

Etymology

From hydro- +‎ meter.

Noun

hydrometer c

1. a hydrometer

Declension

Declension of hydrometer

		nominative	genitive
singular	indefinite	hydrometer	hydrometers
	definite	hydrometern	hydrometerns
plural	indefinite	hydrometrar	hydrometrars
	definite	hydrometrarna	hydrometrarnas

Synonyms

• areometer