tongue tie vs ankyloglossia

tongue tie and ankyloglossia both are nouns.

Word	Noun	Adjective	Verb	Adverb
tongue tie	Yes	No	No	No
ankyloglossia	Yes	No	No	No

As nouns, tongue tie and ankyloglossia are synonyms defined as:

tongue tie and ankyloglossia: a congenital anomaly in which the mucous membrane under the tongue is too short limiting the mobility of the tongue

tongue tie (noun)	ankyloglossia (noun)
a congenital anomaly in which the mucous membrane under the tongue is too short limiting the mobility of the tongue	a congenital anomaly in which the mucous membrane under the tongue is too short limiting the mobility of the tongue