kaoline vs kaolin

kaoline and kaolin both are nouns.

Word	Noun	Adjective	Verb	Adverb
kaoline	Yes	No	No	No
kaolin	Yes	No	No	No

As nouns, kaoline and kaolin are synonyms defined as:

kaoline and kaolin: a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)

Other synonyms of kaoline include china clay, china stone, porcelain clay, terra alba.

kaoline (noun)	kaolin (noun)
a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)	a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)