tick
1. A {jiffy} (sense 1). 2. In simulations, the discrete unit
of time that passes between iterations of the simulation
mechanism. In AI applications, this amount of time is often
left unspecified, since the only constraint of interest is the
ordering of events. This sort of AI simulation is often
pejoratively referred to as "tick-tick-tick" simulation,
especially when the issue of simultaneity of events with long,
independent chains of causes is {handwave}d. 3. In the FORTH
language, a single quote character.
[{Jargon File}]