noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A glycoprotein, produced in the liver, that is converted into thrombin during bleeding and subsequent clotting.
2. 2
   a protein in blood plasma that is the inactive precursor of thrombin wordnet

Synonyms

All synonyms

factor iiclotting factor iifactor iiw:coagulation factor ii

Etymology

From pro- + thrombin.

Related phrases

prothrombin time

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.