somataesthesis vs somatosensory system

somataesthesis and somatosensory system both are nouns.

Word	Noun	Adjective	Verb	Adverb
somataesthesis	Yes	No	No	No
somatosensory system	Yes	No	No	No

As nouns, somataesthesis and somatosensory system are synonyms defined as:

somataesthesis and somatosensory system: the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs

somataesthesis (noun)	somatosensory system (noun)
the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs	the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs