Standard Lemma guide

hydrometer

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /haɪˈdɹɑːmɪtɚ/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ɒmɪtə(ɹ)
  • CMU ARPABET: HH AY0 D R AA1 M AH0 T ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: areometer

Antonyms: none provided

2

noun

Meaning 2

a measuring instrument for determining the specific gravity of a liquid or solid

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: gravimeter

Antonyms: none provided

Broader terms: measuring instrument, measuring system, measuring device

Narrower terms: salinometer, thermohydrometer, thermogravimeter

History

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-)der. English hydro- Proto-Indo-European *meh1- Proto-Indo-European *-tḗr 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.

Across languages

Translations

13 source translations are retained for this English entry.

  • Catalan: hidròmetre — instrument — see also areometer
  • Chinese Mandarin: 比重計 /比重计 — instrument — see also areometer
  • Esperanto: likvodensomezurilo — instrument — see also areometer
  • Esperanto: hidrometro — instrument — see also areometer
  • Finnish: hydrometri — instrument — see also areometer
  • French: hydromètre — instrument — see also areometer
  • Greek: υδρόμετρο (ydrómetro) — instrument — see also areometer
  • Malay: jangka tumpat — instrument — see also areometer
  • Malay: hidrometer — instrument — see also areometer
  • Spanish: hidrómetro — instrument — see also areometer
  • Tagalog: danumsukod — instrument — see also areometer
  • Turkish: hidrometre — instrument — see also areometer
  • Turkish: sıvıölçer — instrument — see also areometer