Englishacorn barnaclenounMeaningAny of several species of stalkless barnacles in the genus Balanus.Any barnacle in the order Sessilia.Related wordsrock barnacle(English)balanus balanoides(English)acorn-shell(English)balanomorph(English)balanomorphan(English)sea acorn(English)nonbalanid(English)acrothoracican(English)SourcesDictionaryAPI.dev English dictionary data