somaesthesis vs somatosensory system

somaesthesis and somatosensory system both are nouns.

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

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

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

somaesthesis (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