六ろく歳さい臼きゅう歯しMeaningsNoun1. six-year molarKanji used六six歳years old臼mortar (a hollow cup)歯toothPitch accentろくさいきゅうしComposed of六ろくsix; 6Numeric歳さい... years old; age (of) ...Counter臼きゅう歯しmolar (tooth); grinder; premolarNoun