diarrhea

noun

di·​ar·​rhea ˌdī-ə-ˈrē-ə 

1

: abnormally frequent intestinal evacuations with more or less fluid stools (see stool entry 1 sense 3a)

Symptoms of the disease include fever, nausea, and diarrhea.

2

: excessive flow

verbal diarrhea

diarrheal

ˌdī-ə-ˈrē-əl 

adjective

diarrheic

ˌdī-ə-ˈrē-ik 

adjective

diarrhetic

ˌdī-ə-ˈre-tik 

adjective

Synonyms of diarrhea

• trots
• runs

Examples of diarrhea in a Sentence

The symptoms of the disease include fever, nausea, and diarrhea.

I was taken with severe diarrhea while attending the conference.

Recent Examples on the Web

Normally, the malnutrition and diarrhea that weakened his tiny frame would have been treated within a few days, but nothing is normal in Yemen anymore. — Fatma Khaled, Los Angeles Times, 25 Sep. 2026

Signs of severe symptoms include bloody diarrhea, fevers over 102 degrees or frequent vomiting that prevents hydration, according to the CDC. — Julia Hawkins, Idaho Statesman, 24 Sep. 2026

Who actually needs digestive enzymes Signs of a genuine enzyme deficiency include diarrhea, stomach pain, bloating, unexplained weight loss and fatty or oily stool that floats. — Hanna Wickes, Kansas City Star, 23 Sep. 2026

Probably the biggest telltale sign of COVID-19 is stomach symptoms such as abdominal pain, vomiting and diarrhea. — Ann Sheehan, The Conversation, 18 Sep. 2026

Word History

Etymology

Middle English diaria, from Late Latin diarrhoea, from Greek diarrhoia, from diarrhein to flow through, from dia- + rhein to flow — more at stream

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing diarrhea

• traveler's diarrhea

Rhymes for diarrhea

• chia
• mia
• pia
• rhea
• shia
• stria
• thea
• zia
• aliya
• aliyah
• althea
• apnoea

Kids Definition

diarrhea

noun

di·​ar·​rhea ˌdī-ə-ˈrē-ə 

: abnormally frequent and watery bowel movements

Medical Definition

diarrhea

noun

di·​ar·​rhea

variants or chiefly British diarrhoea

ˌdī-ə-ˈrē-ə 

: abnormally frequent intestinal evacuations with more or less fluid stools