idiopathic

adjective
id·​i·​o·​path·​ic | \ ˌi-dē-ə-ˈpa-thik How to pronounce idiopathic (audio) \

Definition of idiopathic

1 : arising spontaneously or from an obscure or unknown cause : primary idiopathic epilepsy
2 : peculiar to the individual

Other Words from idiopathic

idiopathically \ ˌi-​dē-​ə-​ˈpa-​thi-​k(ə-​)lē How to pronounce idiopathic (audio) \ adverb

Did you know?

Idiopathic joins the combining form idio- (from Greek idios, meaning "one's own" or "private") with -pathic, a form that suggests the effects of disease. The combining form idio- is typically found in technical terms. Examples include idiographic, meaning "relating to or dealing with something concrete, individual, or unique"; idiolect, meaning "the language or speech pattern of one individual at a particular period of life"; and idiotype, meaning "the molecular structure and conformation of an antibody that confers its antigenic specificity." A more common idio- word is idiosyncrasy, which most commonly refers to an unusual way in which a person behaves or thinks, or to an unusual part or feature of something.

Examples of idiopathic in a Sentence

Recent Examples on the Web Vincent, 81, died on Wednesday in Horseshoe Bay, Texas, of idiopathic pulmonary fibrosis, a lung disease. Joe Lapointe, Detroit Free Press, 31 Dec. 2021 More than a third of acute respiratory illnesses are idiopathic; the same is true for up to 40 percent of gastrointestinal disorders and more than half the cases of encephalitis (swelling of the brain). New York Times, 3 June 2021 The types associated with this cause include: sarcoidosis, idiopathic pulmonary fibrosis, and acute interstitial pneumonia, among others. Korin Miller, Health.com, 24 Sep. 2021 This time, the music will benefit a cause near to Williams’ heart, the Breathless Campaign, which raises awareness and funds research to fight idiopathic pulmonary fibrosis, the disease that claimed his father, Bernabe Sr., in 2001. Dom Amore, courant.com, 26 Aug. 2021 Prominent Phoenix attorney Larry Debus, who was involved in several famous Arizona criminal cases spanning a decades-long career, died Sunday of idiopathic pulmonary fibrosis at the age of 84. Brieanna J. Frank, The Arizona Republic, 18 Aug. 2021 Meadows was diagnosed with idiopathic myointimal hyperplasia of the mesenteric veins in 2005, the outlet said. Greta Bjornson, PEOPLE.com, 13 Aug. 2021 Harry also chatted with 13-year-old William, who lives with juvenile idiopathic arthritis, which causes painful and debilitating joint flare-ups. Omid Scobie, Harper's BAZAAR, 30 June 2021 Patients with idiopathic pulmonary fibrosis develop respiratory failure as their blood doesn’t receive adequate oxygen. Aayushi Pratap, Forbes, 22 June 2021

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

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First Known Use of idiopathic

1669, in the meaning defined at sense 1

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Time Traveler for idiopathic

Time Traveler

The first known use of idiopathic was in 1669

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Dictionary Entries Near idiopathic

-idion

idiopathic

idiophanous

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Statistics for idiopathic

Last Updated

3 Jan 2022

Cite this Entry

“Idiopathic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/idiopathic. Accessed 24 Jan. 2022.

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More Definitions for idiopathic

idiopathic

adjective
id·​io·​path·​ic | \ ˌid-ē-ə-ˈpath-ik How to pronounce idiopathic (audio) \

Medical Definition of idiopathic

: arising spontaneously or from an obscure or unknown cause : primary idiopathic epilepsy idiopathic thrombocytopenic purpura

Other Words from idiopathic

idiopathically \ -​ˈpath-​i-​k(ə-​)lē How to pronounce idiopathic (audio) \ adverb

More from Merriam-Webster on idiopathic

Britannica English: Translation of idiopathic for Arabic Speakers

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