The term 'curved pipe' refers to a type of pipe that is bent or curved in some way. An airtrap is a seven-letter word for a curved pipe that is designed to trap air bubbles and prevent them from entering the system. An ESS is a three-letter word for a curved pipe that is used to connect two pipes at different angles. An ARCS is a four-letter word for a curved pipe that is used to change the direction of a flow. Finally, a swanneck is an eight-letter word for a curved pipe that is designed to reduce turbulence in a flow.