WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / F / factor ii factor ii noun 9 letters Scrabble 13 WWF 14 Definitions noun a protein in blood plasma that is the inactive precursor of thrombin prothrombin Look “factor ii” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →