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 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 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, 23 July 2017 See More

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.

First Known Use of discoid

1712, in the meaning defined at sense 1

History and Etymology for discoid

borrowed from New Latin discoīdēs, borrowed from Greek diskoeidḗs "shaped like a discus," from dískos discus + -oeidēs -oid entry 2

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The first known use of discoid was in 1712

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Last Updated

30 Apr 2022

Cite this Entry

“Discoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/discoid. Accessed 25 Jun. 2022.

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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


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