What is "quinzaine"

Quinzaine \Quin"zaine\, n. [F., from quinze fifteen, L. quindecim. See Fifteen.] The fifteenth day after a feast day, including both in the reckoning. [Written also quinzain.]

n. 1 The fifteenth day after a feast day, including both days in the reckoning. 2 (context poetry English) A piece of verse having fifteen lines.

Quinzaine is an unrhymed verse of fifteen syllables. The word comes from the French word quinze, meaning fifteen. The syllables are distributed over three lines so that there are seven syllables in the first line, five in the second line, and three in the third line (7/5/3). The first line makes a statement. The next two lines ask a question relating to that statement.