etiology

noun

eti·​ol·​o·​gy ˌē-tē-ˈä-lə-jē How to pronounce etiology (audio)
plural etiologies
1
: cause, origin
specifically : the cause of a disease or abnormal condition
2
: a branch of knowledge concerned with causes
specifically : a branch of medical science concerned with the causes and origins of diseases

Examples of etiology in a Sentence

The scarf had been purchased in one of those tiny, exquisitely organized stores that can seduce you into thinking it matters less what you wear than how you accessorize what you wear, and the scarf came in just the noncolor colors that I like: mustard and khaki and taupe, shades of dun, nothing too vivid, yet subtly enlivening. I have traced the etiology of this object the better to convey the irrational significance of its loss. Daphne Merkin, New York Times Magazine, 5 May 1991
In social terms, regardless of its etiology, memory loss may be a way of coping with harsh reality. Elizabeth W. Markson, Growing Old in America, (1985) 1987
I have Freud in my novel as a doctor someone has heard about somewhere, perhaps in Vindobo-na in Pannonia (Vienna in Austria to you), who thinks, though not in so many words, that neuroses have no somatic etiology. I call him Sameach, which is Hebrew for Freud. I also call him Efcharistimenos, which is Greek for Freud. Damn it, I couldn't spell it out more if I tried. Anthony Burgess, Times Literary Supplement, 2 Aug. 1985
Recent Examples on the Web
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But other possibilities, including a non-communicable etiology, cannot be ruled out. Dave Wessner, Forbes, 8 Dec. 2024 The principal events that establish this negative dynamic in their relationship—and, indeed, if such a thing were possible, the underlying etiology of Mother’s fundamental neurosis—lie beyond the scope of her pages and any living recall. Will Self, Harper's Magazine, 23 Sep. 2024 The precise etiology of this dramatic reduction of blood inflammatory measures is yet to be determined. Bill Frist, Forbes, 30 Sep. 2024 Alcohol was the most common etiology even in the general population — about 50%. Isabella Cueto, STAT, 22 July 2024 See all Example Sentences for etiology 

Word History

Etymology

Medieval Latin aetiologia statement of causes, from Greek aitiologia, from aitia cause

First Known Use

circa 1555, in the meaning defined at sense 1

Time Traveler
The first known use of etiology was circa 1555

Dictionary Entries Near etiology

Cite this Entry

“Etiology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/etiology. Accessed 22 Dec. 2024.

Kids Definition

etiology

noun
eti·​ol·​o·​gy ˌēt-ē-ˈäl-ə-jē How to pronounce etiology (audio)
: the cause or origin especially of a disease

Medical Definition

etiology

noun
eti·​ol·​o·​gy
variants or chiefly British aetiology
plural etiologies
1
: the cause or causes of a disease or abnormal condition
some types of cancer have a viral etiology
a multiple etiology in which biological, psychological, and sociocultural factors all play a roleM. E. Jackson et al.
2
: a branch of medical science dealing with the causes and origin of diseases

More from Merriam-Webster on etiology

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