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

• otologists
• otology
• -otomy
• otorhinolaryngology
• otorrhoea
• otorrhoeas
• otoscleroses
• otosclerosis
• otosclerotic
• otoscope
• otoscopes
• otoscopic
• OTT
• Ottamite
• ottar
• ottars
• ottava
• ottava rima
• ottavas
• ottavino
• ottavinos
• otter
• otter-board
• ottered
• otter hound