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From Latin liquidus. Doublet of liquid.


liquidus (plural liquidi or liquiduses)

  1. (chemistry, physics) A line, in a phase diagram, above which a given substance is a stable liquid and below which solid and liquid are in equilibrium. [from 1900]

See also[edit]



From liqueō (I am liquid) +‎ -idus.



liquidus (feminine liquida, neuter liquidum); first/second-declension adjective

  1. liquid, fluid, flowing
    Antonym: solidus
  2. clear, transparent, limpid
  3. (figuratively) without interruption, smooth, fluid, flowing
  4. (figuratively) clear, calm, serene, peaceful
  5. (figuratively) unadulterated, unmixed, pure
  6. (figuratively) clear, manifest, evident, obvious, certain


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative liquidus liquida liquidum liquidī liquidae liquida
Genitive liquidī liquidae liquidī liquidōrum liquidārum liquidōrum
Dative liquidō liquidō liquidīs
Accusative liquidum liquidam liquidum liquidōs liquidās liquida
Ablative liquidō liquidā liquidō liquidīs
Vocative liquide liquida liquidum liquidī liquidae liquida

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Related terms[edit]



  • liquidus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • liquidus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • liquidus in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • liquidus in Ramminger, Johann (accessed 16 July 2016) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700[1], pre-publication website, 2005-2016