An error condition that occurs when an item is called for from the stack, but the stack is empty. Contrast with stack overflow. See stack.
"stack underflow." YourDictionary, n.d. Web. 24 May 2018. <http://www.yourdictionary.com/stack-underflow>.
stack underflow. (n.d.). Retrieved May 24th, 2018, from http://www.yourdictionary.com/stack-underflow