That's not quite right
ok one tiny nit-pick.
I'm not arguing by any means that ASL is not a language.
But it does NOT contain PHONEmes
http://www.sil.org/linguistics/GlossaryOfLinguisticTerms/WhatIsAPhoneme.htm
PHONEmes are about SOUND.
phon = sound
telephone, phonics, phonograph, phonetic, homophone, microphone
maybe...
MIRemes?
SCOPemes?
SPECemes?