any of various plants, especially 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.
a racehorse that runs faster in morning workouts than in afternoon races.
An Americanism dating back to 1805–15
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Bishop and Baucom found that flower size and flowering time became linked in the morning glory populations during the relatively short nine-year study period.
From Science Daily ● Sep. 4, 2026
Cobaea, or any morning glory or nasturtium relative, is sown in May in the greenhouse or under lights.
From Seattle Times ● Jan. 17, 2024
"Bill, you beautiful specimen of a man," gushed James Corden, "For so much of my life, you were my morning glory and I will miss waking up with you every day."
From BBC ● Sep. 1, 2022
Most of the grounds were covered with refuse and thickets of common SoCal landscaping plants — jades, ivy, vinca and morning glory — and he’s been reshaping the garden ever since.
From Los Angeles Times ● Jun. 13, 2022
The blossoms on the morning glory vine were little tight blue fists, and you could hear husky sighing from the cornfield across the fence.
From "A Long Way from Chicago" by Richard Peck
The analysis showed average air temperatures below 66 or above 77 degrees Fahrenheit made fomesafen, glyphosate, and mesotrione -- representing three herbicide sites of action -- less effective on waterhemp, giant foxtail, and morning-glory species.
From Science Daily ● Nov. 19, 2024
It’s lovely in its way, with a mass of morning-glory vines softening things up, and, in lieu of actual trees, a mural of woodland scenes painted along the outside wall.
From The New Yorker ● Jun. 28, 2010
When the congregation was invited to "donate something which has meaning to you," the collection plate yielded little money but plenty of beads, marbles, a draft card and even a package of morning-glory seeds.
From Time Magazine Archive
It had proved effective against bindweed, a wild morning-glory that is the worst weed in western grain fields. 2,4-D killed bindweed without hurting the grain. 2,4-D was only one chemical weeder.
From Time Magazine Archive
Each one has been decorated with a different flower, and they are known as the holly-hock, the sweet pea, the wistaria, and the morning-glory room.
From Remodeled Farmhouses by Mary H. Northend
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
