WordNet (r) 3.0 (2006):

somesthesis
    n 1: the faculty of bodily perception; sensory systems
         associated with the body; includes skin senses and
         proprioception and the internal organs [syn: somesthesia,
         somesthesis, somaesthesia, somaesthesis,
         somatesthesia, somataesthesis, somatosensory system,
         somatic sensory system, somatic sense]