つぶTop 20000MeaningsNoun1. whelk (esp. Neptunea and Buccinum spp.) (Usually kana)2. small spiral-shelled snail (esp. a pond snail)Other spellings螺つぶ12%海螺つぶ0%Other readingsツブKanji in other spellings螺spiral海seaPitch accentつぶ