somatosensory system vs somaesthesis

somatosensory system and somaesthesis both are nouns.

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

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

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

somatosensory system (noun)	somaesthesis (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