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.


How to sign: measuring the optical density of a substance by shining light on it and measuring its transmission

Sorry, no video found for this word.

Categories: measure, measurement, measuring, mensuration

Do you know the sign for this?

Upload your sign now.

Share »   Facebook Twitter Pinterest Email