Meanings
Synonyms & antonyms
nounA closed nut having a dome-like cap over the rear protruding part of the engaged screw or bolt.
Origin
From acorn + nut, because it resembles an acorn.
Full word history & related roots →Cite this entry
acorn nut. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/acorn%20nut
“acorn nut.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/acorn%20nut. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “acorn nut,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/acorn%20nut.
Source: acorn nut on Wiktionary, CC BY-SA 4.0.