lanthanon vs lanthanoid

lanthanon and lanthanoid both are nouns.

Word	Noun	Adjective	Verb	Adverb
lanthanon	Yes	No	No	No
lanthanoid	Yes	No	No	No

As nouns, lanthanon and lanthanoid are synonyms defined as:

lanthanon and lanthanoid: any element of the lanthanide series (atomic numbers 57 through 71)

Other synonyms of lanthanon include lanthanide, rare-earth element, rare earth.

lanthanon (noun)	lanthanoid (noun)
any element of the lanthanide series (atomic numbers 57 through 71)	any element of the lanthanide series (atomic numbers 57 through 71)