/looh'kyoo bray"sheuhn/ , n.
1. laborious work, study, thought, etc., esp. at night.
2. the result of such activity, as a learned speech or dissertation.
3. Often, lucubrations . any literary effort, esp. of a pretentious or solemn nature.
[ 1585-95; lucubration- (s. of lucubratio ) night-work. See LUCUBRATE, -ION ]