discoid

[ dis-koid ]

adjective

1. having the form of a discus or disk; flat and circular.
2. Botany. (of a composite flower) consisting of a disk only, without rays.

noun

1. something in the form of a disk.
2. Dentistry. an excavator with a disklike blade.

discoid

/ ˈdɪskɔɪd /

adjective

1. like a disc
2. (of a composite flower such as the tansy) consisting of disc florets only

noun

1. a disclike object

Other Words From

• postdis·coidal adjective
• sub·discoid adjective
• subdis·coidal adjective

Word History and Origins

Origin of discoid¹

1785–95; < Late Latin discoīdēs < Greek diskoeidḗs quoit-shaped. See discus, -oid

Example Sentences

“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

I had assumed that the pellets fired at protesters – like rubber or plastic bullets, were round discoid things.

From The Guardian

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

Related Words

• disc
• plate
• platter