What is "trochilics"

Trochilics \Tro*chil"ics\, n. [Gr. ? the sheaf of a pulley, roller of a windlass, from ? to run.] The science of rotary motion, or of wheel work.
--Wilkins.

n. The science of rotary motion, or work done with wheels.

Trochilics is the science of rotary motion, or work done with wheels.

Trochilics may also refer to:

• Trochilic Engine, a type of Swing-piston engine conceptualized in the 1990s but never built