plural of sextagenarian

(obsolete, medicine) That recurs on the sixth day

(obsolete, medicine) A fever that recurs every sixth day.

plural of sextans

(informal) great, with regards to sex

(historical) A Roman measure of capacity, one sixth of a congius, about 546 ml or approximately one pint.

plural of sextarius

(rare, spectroscopy) A group of six peaks or lines

(rare) Reduce by one sixth. / (rare) Reduce to one sixth.

(rare) sixfold; In groups of six. / (rare, physics) sixfold degenerate