a measure of the average length of time that a soluble compound remains in a constructed reactor

plural of hydraulic retention time

Alternative form of for old times' sake

(idiomatic) An appeal to the nostalgia of prior experiences to convince someone to do something.

plural of first-time buyer

Alternative form of daylight savings time

plural of daylight saving time

plural of daylight-savings time

(UK) the time when customers in a public house should finish their drinks, before closing time.

(music) A meter or rhythm with four beats to a measure and four beats to a whole note. Specifically common time.