Share this entry

Share this page

melaena

Line breaks: me|laena
Pronunciation: /mɪˈliːnə
 
/
(also melena)

Definition of melaena in English:

noun

[mass noun] Medicine
The production of dark sticky faeces containing partly digested blood, as a result of internal bleeding or the swallowing of blood.
Example sentences
  • It is normal to lose 0.5 to 1.5 ml of blood daily in the gastrointestinal tract, and melena usually is identified when more than 150 ml of blood are lost in the upper gastrointestinal tract.
  • Unless colon cancer has metastasized to the liver, symptoms tend to be one or more of the following: hematochezia, melena, anemia resulting from occult blood loss and change in bowel habits.
  • At external examination, blood smears on the body surface resulting from hematemesis or melena were present in 40 cases.

Origin

early 19th century: modern Latin, from Greek melaina, feminine of melas 'black'.

Definition of melaena in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day odium
Pronunciation: ˈōdēəm
noun
widespread hatred or disgust for someone…