Dashboard Review Lessons

Learn

Kana Immersion Decks

Look up

Dictionary Grammar Themes Mining

Prove it

Games Exam Badges

Home Review Dictionary Lessons

v0.58What's newStudy levelSend feedbackReviewFriendsSettingsNotifications

© 2026 Nihongo CircleChangelog Genki companion Credits Terms Privacy Security

ロックウール — rock wool · Nihongo Circle

ロックウール

noun

Meanings

1rock wool
2mineral wool

Your sentences

Full entry on Jisho