saros /sāˈros or säˈros/

1. An astronomical cycle of 6585 days and 8 hours, after which relative positions of the sun and moon recur
2. A Babylonian cycle of 3600 years

• retroject
• retrojected
• retrojecting
• retrojection
• retrojections
• retrojects
• retrolental
• retromingencies
• retromingency
• retromingent
• retromingents
• retronym
• retronyms
• retro-operative
• retrophilia
• retrophiliac
• retrophiliacs
• retrophilias
• retropulsion
• retropulsions
• retropulsive
• retroreflective
• retroreflector
• retroreflectors
• retro-rocket