liver

Noun

(countable) A large organ in the body that makes bile, and controls chemicals in the blood.
The liver is one of the most important organs in our body.
(countable & uncountable) An organ used for food.
We're having beef liver for dinner.
(countable & uncountable) The colour of the liver, a dark brown.

Parts of the body (edit)
head	ears - eyes - eyebrow - nose - mouth - lips - tongue - tooth (pl. teeth) - cheeks - chin
torso	neck - throat - shoulders - chest - breasts - ribs - abdomen - pelvis - back
internal organs	heart - lungs - liver - stomach - kidneys - intestines - bladder - ovaries - uterus/womb
extremities	arms - hands - fingers - legs - feet - toes
sex organs	penis - vagina - testicle - ovary - vulva