viscera

/ˈvɪsərə/
noun
  1. The internal organs of the body, especially those in the chest and abdomen, such as the heart, lungs, liver, and intestines.
    • In biology class, we dissected a frog to study its viscera.
    • The accident caused severe damage to his viscera, requiring emergency surgery.
    • The surgeon carefully examined the patient's viscera during the operation.