discoid
adjective
dis·coid
ˈdi-ˌskȯid 
1
: relating to or having a disk: such as
a
: situated in the floral disk
discoid florets
b
: having only disk flowers
a discoid flower head
2
: flat and circular like a disc
Examples of discoid in a Sentence
Recent Examples on the Web
Some target the hair follicles or scalp specifically—like alopecia areata and discoid lupus erythematosus—while others (such as thyroid disease) affect another part of the body and can cause hair loss as one of many symptoms, Dr. Lo Sicco explains.
—
Krissy Brady, SELF, 5 Mar. 2024
The reasons for this discrepancy aren’t clear, but the answer could be tied to other discoid eczema risk factors.
—Stephanie Watson, SELF, 8 Apr. 2022
Dermatologists sometimes refer to this eczema type as discoid eczema, another reference to its signature circular marks.
—Stephanie Watson, SELF, 8 Apr. 2022
Opah are discoid fish, meaning they are shaped like large discs.
—oregonlive, 15 July 2021
This type of eczema—often called nummular eczema or discoid eczema—happens after some kind of skin injury (like a bug bite, burn, or cut), SELF previously reported.
—Korin Miller, SELF, 6 Oct. 2020
It can also be used to treat discoid lupus erythematosus and systemic lupus erythematosus.
—Adrianna Rodriguez, USA TODAY, 22 May 2020
In addition to malaria, the drug can also be used to treat acute and chronic rheumatoid arthritis, discoid lupus erythematosus and systemic lupus erythematosus.
—Elizabeth Weise, USA TODAY, 19 May 2020
When 23-year-old Jokiva Bellard was diagnosed with discoid lupus five years ago, she was devastated.
—Hayley MacMillen, Allure, 23 Jan. 2018
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Krissy Brady, SELF, 5 Mar. 2024
The reasons for this discrepancy aren’t clear, but the answer could be tied to other discoid eczema risk factors.
—Stephanie Watson, SELF, 8 Apr. 2022
Dermatologists sometimes refer to this eczema type as discoid eczema, another reference to its signature circular marks.
—Stephanie Watson, SELF, 8 Apr. 2022
Opah are discoid fish, meaning they are shaped like large discs.
—oregonlive, 15 July 2021
This type of eczema—often called nummular eczema or discoid eczema—happens after some kind of skin injury (like a bug bite, burn, or cut), SELF previously reported.
—Korin Miller, SELF, 6 Oct. 2020
It can also be used to treat discoid lupus erythematosus and systemic lupus erythematosus.
—Adrianna Rodriguez, USA TODAY, 22 May 2020
In addition to malaria, the drug can also be used to treat acute and chronic rheumatoid arthritis, discoid lupus erythematosus and systemic lupus erythematosus.
—Elizabeth Weise, USA TODAY, 19 May 2020
When 23-year-old Jokiva Bellard was diagnosed with discoid lupus five years ago, she was devastated.
—Hayley MacMillen, Allure, 23 Jan. 2018
Cite this Entry
“Discoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/discoid. Accessed 3 Jul. 2025.
Copy CitationMedical Definition
discoid
1 of 2 adjective
dis·coid
ˈdis-ˌkȯid
1
: resembling a disk : being flat and circular
the red blood cell is a biconcave discoid body
2
: characterized by macules
discoid lupus erythematosus
discoid
2 of 2 noun
: an instrument with a disk-shaped blade used in dentistry for carving
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