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.
That sharp slowdown could also have implications for agriculture because morning glory is often considered a troublesome weed by farmers.
From Science Daily ● Sep. 4, 2026
Over a morning glory bowl, dandy latte and grapefruit juice, skateboarder and model Briana King tells me she’s “been thinking a lot less.”
From Los Angeles Times ● Sep. 14, 2022
"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
Although most gardeners have a complicated relationship with morning glory, this singular annual is a treasure and will not colonize the garden like nasty bindweed.
From Seattle Times ● Jul. 2, 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
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
First we passed through a swamp of purple and white azaleas; then one of snowy callas; then near a bank hidden from view by heavy morning-glory vines in bloom, still dripping with dew.
From Scenes in the Hawaiian Islands and California by Mary E. (Mary Evarts) Anderson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
