somatic vs corporal

somatic is not a noun while corporal is a noun.

Word	Noun	Adjective	Verb	Adverb
somatic	No	Yes	No	No
corporal	Yes	Yes	No	No

As adjectives, somatic and corporal are synonyms defined as:

somatic and corporal: affecting or characteristic of the body as opposed to the mind or spirit

Other synonyms of somatic include bodily, corporeal.

somatic (noun)	corporal (noun)
	a noncommissioned officer in the Army or Air Force or Marines

somatic (adjective)	corporal (adjective)
affecting or characteristic of the body as opposed to the mind or spirit	possessing or existing in bodily form
	affecting or characteristic of the body as opposed to the mind or spirit