Welcome to the Signing Science Dictionary (SSD)!

This illustrated interactive 3D sign language dictionary is designed for students who are deaf or hard of hearing and use American Sign Language (ASL) in the classroom. It is also intended to serve as a resource for teachers and parents.

Click PDF for a list of all the terms in the SSD.

Take a first look at the SSD. (Movie movie with speech , movie with NO speech)

TERC Text, pictures, and interface design © TERC, Inc. All rights reserved.
VCom3D SigningAvatar® animation technology © Vcom3D.
All rights reserved.

National Science FoundationDepartment of Education