Subglossal is the medical term meaning beneath the tongue.
The medical term for tongue is "lingua" or "glossa".
Ankyloglossia is the medical term meaning tongue-tie, or shortened tongue due to the position of the frenulum.
Hemiglossectomy is the medical term meaning surgical removal of half the tongue.
Lingual tonsillitis is the medical term meaning inflammation of lymph tissue at the back of the tongue.
Macroglossia means enlarged tongue.
Subtracheal means beneath the trachea.
Subcutaneous
The medical term for a fatty deposit under the skin is lipoma.cellulite
Inferior is the medical term meaning below; the medical terminology combining form is infra-.
Sub- is the prefix of the term subdermal, meaning below the skin.
Submandibular is the medical term meaning below the lower jaw, or mandible.