Tachyo collects STEM sign dictionary and reference entries in one searchable resource.
DeafTec
STEM Dictionary presents technical signs used in STEM subjects, supporting Auslan interpreters, teachers, tutors, and learners.
About DeafTec
STEM Dictionary is a video dictionary of technical signs for STEM subjects in American Sign Language. It was developed by DeafTEC with support from The Dow Chemical Company, under the stewardship of Geoff Poor, professor of ASL at the National Technical Institute for the Deaf in Rochester, NY.
It aims to reduce ad hoc signs that vary from course to course and instructor to instructor. The dictionary is described as a work in progress and is not exhaustive.
Key features
- Video dictionary of technical STEM signs in ASL
- Introductory video explaining purpose, creation, use, and audience
- Focus on vocabulary not used in common ASL vernacular
- Email contact for suggesting additional terms and improvements
Best for: Interpreters, teachers, tutors, and deaf or hard-of-hearing students using STEM terms in ASL.
Good for
- Provides a shared reference to reduce varied ad hoc technical signs
- Developed under the stewardship of an NTID ASL professor
- Accepts user suggestions for additional terms and improvements
Watch out for
- Described as a work in progress and not exhaustive
DeafTec at a glance
- Website
- deaftec.org/stem-dictionary
- Category
- Education & Learning › Language Learning
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
DeafTec alternatives
Tools and sites you could use instead, ranked by how closely they match.
Auslan Signbank is a language resource with sign dictionaries and searches for medical, health, education, and teaching topics.
Interpreter Services lists specialized signs for automotive, electrical, and welding terms.
Oxford Learner's Dictionaries provides free dictionary entries and options to redeem, upgrade, get help, and sign in.
The NZSL Online dictionary provides reference entries for New Zealand Sign Language learners and users.
ASL-LEX presents a lexical database for exploring and visualizing the American Sign Language lexicon.
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DeafTec FAQ
Is the dictionary complete?
No. It is described as a work in progress and a start, but not exhaustive.
How can I suggest additional terms?
Email suggestions for additional terms and other improvements to [email protected].
Who is the dictionary for?
Interpreters, teachers, tutors, and deaf or hard-of-hearing students working with STEM vocabulary.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.