dis·​coid | \ ˈdi-ˌskȯid How to pronounce discoid (audio) \

Definition of discoid

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 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, "How to Know When Your Dry Skin Is Actually Eczema," 6 Oct. 2020 It can also be used to treat discoid lupus erythematosus and systemic lupus erythematosus. Adrianna Rodriguez, USA TODAY, "Coronavirus patients who took hydroxychloroquine had higher risk of death, study shows," 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, "Hydroxychloroquine and coronavirus: From studies to side effects, everything to know about the drug Trump says he's taking," 19 May 2020 When 23-year-old Jokiva Bellard was diagnosed with discoid lupus five years ago, she was devastated. Hayley Macmillen, Allure, "Lupus Advocate Jokiva Bellard Shares Why She Feels Most Beautiful When She's Sick," 23 Jan. 2018 Discoid lupus is medically described as a skin condition in which sores appear on the face, scalp and arms and can cause alopecia. Jackeline Stewart, The Root, "For Colored Girls Who Don’t Know They’re Struggling," 23 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'discoid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of discoid

1712, in the meaning defined at sense 1

History and Etymology for discoid

Late Latin discoides quoit-shaped, from Greek diskoeidēs, from diskos disk

Keep scrolling for more

Learn More about discoid

Time Traveler for discoid

Time Traveler

The first known use of discoid was in 1712

See more words from the same year

Statistics for discoid

Cite this Entry

“Discoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/discoid. Accessed 6 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Keep scrolling for more

More Definitions for discoid


dis·​coid | \ ˈdis-ˌkȯid How to pronounce discoid (audio) \

Medical Definition of discoid

 (Entry 1 of 2)

1 : resembling a disk : being flat and circular the red blood cell is a biconcave discoid body
2 : characterized by macules discoid lupus erythematosus



Medical Definition of discoid (Entry 2 of 2)

: an instrument with a disk-shaped blade used in dentistry for carving

More from Merriam-Webster on discoid

Thesaurus: All synonyms and antonyms for discoid

Nglish: Translation of discoid for Spanish Speakers

Comments on discoid

What made you want to look up discoid? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Who Knew?

True or False

Test your knowledge - and maybe learn something along the way.

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!