Definition of prothrombin in English:

Share this entry

prothrombin

Pronunciation: /prōˈTHrämbən/

noun

Biochemistry
A protein present in blood plasma that is converted into active thrombin during coagulation.
Example sentences
  • Contact with tissue factor triggers the coagulation cascade, resulting in the conversion of prothrombin to active thrombin.
  • This complex activates prothrombin to thrombin in the presence of calcium ions.
  • Years ago we said fibrinogen (a soluble protein) becomes a clot of insoluble fibrin by the action of thrombin made from soluble prothrombin in the presence of calcium.

For editors and proofreaders

Syllabification: pro·throm·bin

Share this entry
 

What do you find interesting about this word or phrase?

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