BSL Sign Language Dictionary

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

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

Dewar flask

How to sign: vacuum flask that holds liquid air or helium for scientific experiments

Sorry, no video found for this word.

Similiar / Same: Dewar

Categories: vacuum bottle, vacuum flask

Do you know the sign for this?

Upload your sign now.

Share »   Facebook Twitter Pinterest Email