hypoesthesia

/ˌhaɪpoʊɪsˈθiʒə/
noun
  1. A reduced ability to feel touch, pain, or temperature in part of the body.
    • After the accident, he experienced hypoesthesia in his left hand and couldn't feel hot or cold.
    • Hypoesthesia can be a side effect of some medications that affect the nerves.
    • The dentist tested for hypoesthesia by lightly touching the patient's cheek with a cotton swab.
Synonyms