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factor VII

factor VII

5.9
A protein in the blood that helps it clot and needs vitamin K
  • noun
  • /ˈfæktər ˈsɛvən/
  • Specialized
translation icon : factor VII
  • Factor VII is essential for the blood clotting process, as it helps prevent excessive bleeding.

Examples

  • A deficiency in factor VII can lead to serious bleeding disorders, requiring medical intervention.

  • Researchers are studying how vitamin K influences the production of factor VII in the kidneys.

  • OCs induce increases in factor VII coagulant activity and in fibrinogen concentrations, and lower antithrombin concentrations.

    Academic text (1999)

Synonyms

stable factor
vsfactor VII
  • Specialized
9.4

A protein made in the kidney that helps blood form clots

is the same protein but uses a different name
cothromboplastin
vsfactor VII
  • Specialized
9.9

A protein the kidney makes that helps blood clot and needs vitamin K

is the specific protein identified as helping blood clot
proconvertin
vsfactor VII
  • Specialized
9.9

A protein made in the liver with vitamin K that helps blood clot

is produced in the kidney rather than primarily in the liver

Surface Forms

factor VII singular
factors VII plural

Morphology

factor + VII

Knowing 'factor' (an element) and 'VII' (seven) lets a learner infer this is the seventh factor — a numbered entity — so part of the meaning (a labeled/numbered factor) is recoverable. However, the specific biomedical sense (a blood-clotting protein produced under vitamin K, clinical relevance) is specialized domain knowledge and cannot be derived from the constituents alone, so full meaning is not predictable for a B1 learner.

Etymology

Factor VII is named like a set of numbered blood helpers: factor means a blood 'helper' and VII is the number seven, so it is the seventh helper that helps make a blood 'clot'. It is a protein made in the kidneys with the help of vitamin K, so less vitamin K or less factor VII can cause more 'bleeding'.