This glossary is about human body part. In other words, I think it would be important to know more about the body when you're studying in Social Science. Yes, Social Science is more about psychology but we should not forget the body language who says a lot about a person.
Mouth
noun
The opening in the lower part of the human face, surrounded by the lips, through which food is taken in and from which speech and other sounds are emitted.
Example: Such desires to practice using their mouths to produce different kinds of sounds will be a useful route for the babies to perfect their pronunciation of the phonemes making up their future language.
