(biology, anatomy, embryology) The central loop of the alimentary canal of an embryo between the foregut and the hindgut, in humans and some other animals.

A graduated glass tube, closed at one end, that is used for measuring the change in the volume of gases during a chemical reaction.

An electromechanical device which connects an input to one of a number of outputs according to how many electrical pulses it has received on its input.

a binding agreement between New France and forty First Nations signed in 1701 that ended the Beaver Wars.