Meanings
nounblue oak (plural blue oaks)
plural blue oaks
- Any member of the species Quercus douglasii of oak trees endemic to California.
Synonyms: iron oak, mountain oak
Synonyms & antonyms
nounAny member of the species Quercus douglasii of oak trees endemic to California.
Similar
nounSynonym of bur oak (Quercus macrocarpa).
Similar
Also see
Translations
French chêne bleu, chêne de Douglas
- chêne bleuQuercus douglasii
- chêne de DouglasQuercus douglasii
Spanish roble azul
- roble azulQuercus douglasii
Cite this entry
APA
blue oak. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/blue%20oak
MLA
“blue oak.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/blue%20oak. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “blue oak,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/blue%20oak.
Source: blue oak on Wiktionary, CC BY-SA 4.0.