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Meaning of morning glory

morn'ing glo"ry

Pronunciation: [key]
  1. any of various plants, esp. of the genera Ipomoea and Convolvulus, as I. purpurea, a twining plant having cordate leaves and funnel-shaped flowers of various colors, often opening only in the morning.
  2. a racehorse that runs faster in morning workouts than in afternoon races.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.