No: at least I am not familiar with the term.
I do remember well the book I used in the course. It was an historical novel, called "A Crossbowman's Story" : a fictiona account of the real journey of a Spoanish soldier, Francisco Orellana across the Andes in Peru in an early expedition led by Ferdinand Pizzaro's brother Gonsalves, and a subsequent journey down from the headwaters of the Amazon to the Atlantic after Orellana and a group of about 15 other soldiers became separated from the main force after a battle. When, after a couple of months on the river they got to the mouth of the Amazon and realized they were in salt water, they went ashore; built a larger boat with sails, and navigated up around the coast to the SApanish settlement in Trinidad. Tough guys !
The story has stayed with me for many years. Perhaps it was all the concentration, trying to stay ahead of ther screen.