Meaning of four-o'clock

four-o'clock

Pronunciation: (fôr'u-klok", fōr'-), [key]
— n.
  1. a common garden plant, Mirabilis jalapa, of the four-o'clock family, having tubular red, white, yellow, or variegated flowers that open late in the afternoon.
  2. any plant of the same genus.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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