Answer: octan

AnswerCrossword Clue
OCTANOccurring every eight days.
OCTANOccurring every eighth day.
OCTANRecurring every eighth day.
OCTANRecurring on the 8th day.
OCTANOccurring every 8th day.
OCTANOccurring every eighth day
OCTANEvery eighth day
octan(of a fever) occurring every eighth day
octanoctan fever
octana fever recurring every eight day