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.
In the morning glory populations, those traits became increasingly linked.
From Science Daily ● Sep. 4, 2026
She had a Spanish-style house with bright morning glory vines where she hosted a neighborhood screening of “To Catch a Thief” on her front lawn.
From Los Angeles Times ● Nov. 14, 2025
Sarah Alvernaz, the general manager of sales at the Merced County-based California Sweet Potato Growers, said sweet potatoes are actually a member of the morning glory family.
From Seattle Times ● Jul. 5, 2023
"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
Her long hair was flying and her eyes were as bright as morning glory blossoms.
From "Summer of the Monkeys" by Wilson Rawls
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
Dime-sized, it featured a cerulean teardrop oozing from a dark blue morning-glory.
From Time Magazine Archive
Today, beside its faded sofa, ancient radio with morning-glory horn, and murals of Charlestoning showgirls, stands a television set.
From Time Magazine Archive
First the gay courier told his story To the opening buds of the morning-glory.
From Harper's Young People, June 8, 1880 An Illustrated Weekly by Various
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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.
