Lū'cu-brā'tion, n.

noun

n. [Lat. lucubratio, Fr. lucubration, Sp. lucubracion, It. lucubrazione.]

  1. The act of lucubrating, or studying by candle-light; nocturnal study.
  2. That which is composed by night; that which is produced by meditation in retirement.

The most trifling lucubration was denominated “a work.” W. Irving.