ASL Sign Language Dictionary

Search and compare thousands of words and phrases in American Sign Language (ASL). The largest collection online.

Android app on Google Play
NEW View all these signs in the Sign ASL Android App. Download for free.

rock wool

How to sign: a light fibrous material used as an insulator

Sorry, no video found for this word.

Similiar / Same: mineral wool

Categories: dielectric, insulator, nonconductor

Do you know the sign for this?

Upload your sign now.

Share »   Facebook Twitter Pinterest Email