"cycle" - key terms from Wikipedia

atkinson cycle
brayton cycle
break the cycle
business cycle
calvin cycle
carbon cycle
cardiac cycle
carnot cycle
cell cycle
characters in the inheritance cycle
citric acid cycle
clock cycle
combined cycle
cycle
cycle	time
duty cycle
estrous cycle
fuel cycle
hainish cycle
hamiltonian cycle
hit for the cycle
inheritance cycle
inheritance cycle	characters
joke cycle
krebs cycle
life cycle
life cycle	assessment
light cycle
list of the inheritance cycle
lytic cycle
metonic cycle
nitrogen cycle
nuclear fuel cycle
otto cycle
product life cycle
rankine cycle
refrigeration cycle
ring cycle
rock cycle
software release life cycle
solar cycle
song cycle
stirling cycle
sunspot cycle
systems development life cycle
thermodynamic cycle
urea cycle
vicious cycle
wash cycle
water cycle