Main Entry: lu·cu·bra·tion

Pronunciation: \ˌlü-kyə-ˈbrā-shən, ˌlü-kə-\

Function: noun

Etymology: Latin lucubration-, lucubratio study by night, work produced at night, from lucubrare to work by lamplight; akin to Latin luc-, lux

Date: 1595

: laborious or intensive study; also : the product of such study —usually used in plural