I have been largely been referring to Web Cryptography API as "WebCrypto" in code comments. I assumed at the time this was correct terminology, but don't think it is really justified:

* The official name is "Web Cryptography API"
* "WebCrypto" only appears in 3 places in old Editorial notes of the spec, so probably not normative terminology

I think a more correct naming would be either:
* Web Crypto
or
* Web Cryptography API