noun
: an visceral organ that has the form of a hollow tube or pouch (as the stomach or intestine) or that includes a cavity which subserves a vital function (as the heart or bladder)
noun
: an visceral organ that has the form of a hollow tube or pouch (as the stomach or intestine) or that includes a cavity which subserves a vital function (as the heart or bladder)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012