discoid
Americanadjective
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having the form of a discus or disk; flat and circular.
-
Botany. (of a composite flower) consisting of a disk only, without rays.
noun
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something in the form of a disk.
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Dentistry. an excavator with a disklike blade.
adjective
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like a disc
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(of a composite flower such as the tansy) consisting of disc florets only
noun
Other Word Forms
- postdiscoidal adjective
- subdiscoid adjective
- subdiscoidal adjective
Etymology
Origin of discoid
1785–95; < Late Latin discoīdēs < Greek diskoeidḗs quoit-shaped. See discus, -oid
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“The bracelets are made of glass beads, blue to blue-green in color and decorated with light-colored threads, alternating with large series of discoid copper alloy beads,” explained Inrap.
From Fox News
But more significantly, another joke at singer Seal’s expense was not about his race — it was about his FACE, which is scarred by a type of lupus called discoid lupus erythematous.
From New York Times
Researchers used high-speed cameras to study the movement of Blaberus discoidalis, otherwise known as the discoid cockroach, through an artificial obstacle course containing grass-like vertical beams with small spacing.
From Reuters
Friedman mentions a few less-common issues: a skin disease called discoid lupus, or an allergic reaction.
From Time
The tubular flowers compose the disk; and a head which has no ray-flowers is said to be discoid.
From Project Gutenberg
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.
