Question

Define mouthing? From the biology book

Answer 1

Answer:

To move mouth as if you were speaking but without making any sound

Answer 2

Answer:

In sign language, mouthing is the production of visual syllables with the mouth while signing. That is, signers sometimes say or mouth a word in a spoken language at the same time as producing the sign for it. ... Mouthing often originates from oralist education, where sign and speech are used together.