diabase

D2I1A1B3A1S1E1
/ˈdaɪ.əˌbeɪs/

noun

A fine-grained igneous rock composed mostly of pyroxene and feldspar.

Similar
dolerite
OriginFrench diabase ← Ancient Greek διάβασις →
UncommonScrabble 10
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Meanings

noundiabase (countable and uncountable, plural diabases)

plural diabases

  1. countableuncountablegeographyA fine-grained igneous rock composed mostly of pyroxene and feldspar.

    Synonyms: dolerite

Synonyms & antonyms

nounA fine-grained igneous rock composed mostly of pyroxene and feldspar.

Similar
dolerite
Also see
dolerite

Origin

  1. Ancient Greekδιάβασις
  2. Frenchdiabase
  3. Englishdiabase

From French diabase, from Ancient Greek διάβασις (diábasis).

More words from French, Ancient Greek

Full word history & related roots →

Translations

Finnish diabaasi
  • diabaasia fine-grained igneous rock
French diabase
  • diabasea fine-grained igneous rock
Polish diabaz, doleryt
  • diabaza fine-grained igneous rock
  • doleryta fine-grained igneous rock
Russian диаба́з
  • диаба́з (diabáz)a fine-grained igneous rock
Spanish diabasa
  • diabasaa fine-grained igneous rock
Turkish diyabaz
  • diyabaza fine-grained igneous rock
Cite this entry
APA

diabase. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/diabase

MLA

“diabase.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/diabase. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “diabase,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/diabase.

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