dentine vs dentin

dentine and dentin both are nouns.

Word	Noun	Adjective	Verb	Adverb
dentine	Yes	No	No	No
dentin	Yes	No	No	No

As nouns, dentine and dentin are synonyms defined as:

dentine and dentin: bone (calcified tissue) surrounding the pulp cavity of a tooth

As nouns, dentine and dentin are synonyms defined as:

dentine and dentin: a calcareous material harder and denser than bone that comprises the bulk of a tooth

dentine (noun)	dentin (noun)
bone (calcified tissue) surrounding the pulp cavity of a tooth	bone (calcified tissue) surrounding the pulp cavity of a tooth
a calcareous material harder and denser than bone that comprises the bulk of a tooth	a calcareous material harder and denser than bone that comprises the bulk of a tooth