cactus

noun

cac·​tus ˈkak-təs How to pronounce cactus (audio)
plural cacti ˈkak-ˌtī How to pronounce cactus (audio)
-(ˌ)tē
or cactuses also cactus
: any of a family (Cactaceae, the cactus family) of plants that have succulent stems and branches with scales or spines instead of leaves and are found especially in dry areas (such as deserts)

Examples of cactus in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Wooly devil grows near drought-tolerant plants, including ocotillo, hedgehog cactus and creosote. Sarah Kuta, Smithsonian Magazine, 25 Feb. 2025 The roads nearby were lined with cactus and palms; an Osprey flew overhead. Colin Demarest, Axios, 12 Feb. 2025 During a recent preview, beers poured from a pink cactus behind the bar. Michael Deeds, Idaho Statesman, 10 Jan. 2025 Then repot your plant using a succulent or cactus potting mix that has plenty of perlite, sand, or bark for quick drainage. Lauren Landers, Better Homes & Gardens, 9 Jan. 2025 See All Example Sentences for cactus

Word History

Etymology

New Latin, genus name, from Latin, cardoon, from Greek kaktos

First Known Use

1738, in the meaning defined above

Time Traveler
The first known use of cactus was in 1738

Cite this Entry

“Cactus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cactus. Accessed 3 Mar. 2025.

Kids Definition

cactus

noun
cac·​tus ˈkak-təs How to pronounce cactus (audio)
plural cacti -ˌtī How to pronounce cactus (audio)
-(ˌ)tē
or cactuses also cactus
: any of a large family of flowering plants able to live in dry regions and having fleshy stems and branches that bear scales or prickles instead of leaves

More from Merriam-Webster on cactus

Last Updated: - Updated example sentences
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