palmistry vs chirology

palmistry and chirology both are nouns.

Word	Noun	Adjective	Verb	Adverb
palmistry	Yes	No	No	No
chirology	Yes	No	No	No

As nouns, palmistry and chirology are synonyms defined as:

palmistry and chirology: telling fortunes by lines on the palm of the hand

Other synonyms of palmistry include chiromancy, palm reading.

palmistry (noun)	chirology (noun)
telling fortunes by lines on the palm of the hand	telling fortunes by lines on the palm of the hand