: a rounded thick modified underground stem base bearing membranous or scaly leaves and buds and acting as a vegetative reproductive structure compare bulb, tuber

Examples of corm in a Sentence

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Divide the corms or rhizomes, making sure each new section has at least on growing point. Kim Toscano, Southern Living, 23 Apr. 2026 They're typically planted as corms. Samantha Johnson, Martha Stewart, 20 Apr. 2026 These plants grow from corms and will spread vegetatively in shady garden spots. Joshua Siskin, Oc Register, 21 Mar. 2026 Plant corms 3 inches deep and 6 to 8 inches apart after danger of frost. Barbara Gillette, The Spruce, 27 Feb. 2026 See All Example Sentences for corm

Word History

Etymology

borrowed from New Latin cormus, borrowed from Greek kormós "tree trunk after removal of the boughs," from kor-, o-grade derivative from the base of keírein "to cut off, shave" + -mos, resultative noun suffix — more at shear entry 1

First Known Use

1830, in the meaning defined above

Time Traveler
The first known use of corm was in 1830

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Cite this Entry

“Corm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/corm. Accessed 29 Apr. 2026.

Kids Definition

corm

noun
: a solid underground part of a stem (as of the crocus) that is shaped like a bulb compare bulb sense 1a, tuber sense 1

Medical Definition

corm

noun
: a rounded thick modified underground stem base bearing membranous or scaly leaves and buds and acting as a vegetative reproductive structure

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