FACTOR I

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does factor I mean? 

• FACTOR I (noun)
  The noun FACTOR I has 1 sense:

1. a protein present in blood plasma; converts to fibrin when blood clots

  Familiarity information: FACTOR I used as a noun is very rare.

 Dictionary entry details 

• FACTOR I (noun)

Sense 1

Meaning:

A protein present in blood plasma; converts to fibrin when blood clots

Classified under:

Nouns denoting substances

Synonyms:

factor I; fibrinogen

Hypernyms ("factor I" is a kind of...):

clotting factor; coagulation factor (any of the factors in the blood whose actions are essential for blood coagulation)

 Context examples 

Human colony stimulating factor 1 receptor (CSF1R) gene, located at 5q33.2-q33.3, encodes macrophage colony stimulating factor I receptor protein.

(Oncogene CSF1R, NCI Thesaurus)

The constant low level of C3b activation and potential activation of the alternative pathway is kept in check by a natural damper, factor H and factor I. Factors H and I in plasma inactivate C3b enzyme in solution.

(Alternative Complement Pathway, NCI Thesaurus/BIOCARTA)