Meanings
nounfactor II (uncountable)
- abbreviationellipsisuncountableEllipsis of clotting factor II (“prothrombin”)
Synonyms & antonyms
nouna protein in blood plasma that is the inactive precursor of thrombin
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Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
factor II. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/factor%20II
MLA
“factor II.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/factor%20II. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “factor II,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/factor%20II.
Source: factor II on Wiktionary, CC BY-SA 4.0.