One of the organs, as the brain, heart, or stomach, in the great cavities of the body of an animal; -- especially used in the plural, and applied to the organs contained in the abdomen.

L. = any internal organ in a cavity, from L. visco = I make sticky.

An internal organ of a human or animal.

a main organ that is situated inside the body

an internal organ of the body

Latin = an internal organ, plural - viscera, adjective - visceral.

In anatomy, a viscus (plural: viscera) is an internal organ of an animal (including humans), in particular an internal organ of the thorax or abdomen. The viscera, when removed from a butchered animal, are known collectively as offal. Internal organs are also known as "innards", or less formally, "guts" (which may also refer to the gastrointestinal tract).