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factor II

factor II

7.2
A protein in blood that changes into thrombin to help blood clot
  • noun
  • Specialized
translation icon : factor II
  • The factor II protein plays a crucial role in blood clotting.

Examples

  • The doctor explained that a low factor II level can lead to bleeding disorders.

  • Researchers studied how mutations in factor II impact blood clotting efficiency.

  • A deficiency in factor II is one of several rare blood coagulation disorders.

  • Patients with low factor II levels may experience bleeding disorders.

  • A deficiency in factor II is one of several rare blood coagulation disorders.

  • The doctor explained that a low factor II level can lead to bleeding disorders.

  • Researchers studied how mutations in factor II impact blood clotting efficiency.

Synonyms

prothrombin
vsfactor II
  • Specialized
1 8.3

A protein in blood that helps form clots to stop bleeding

has identical meaning but is an alternative name for the same protein

Surface Forms

factor II singular
factors II plural

Morphology

factor + II

The form 'factor II' is compositionally clear — a learner who knows 'factor' and the Roman numeral 'II' can infer it means 'the second factor' or a labeled factor. However, the precise biomedical sense (that it is the protein prothrombin involved in blood clotting) is technical and not derivable from the constituents, so a B1 learner would not grasp the specialized meaning without prior domain exposure.

Etymology

Factor II comes from early blood-clot research, when scientists numbered the different parts that help blood clot and called this one factor II. Factor II is the inactive protein that turns into 'thrombin', so the name helps you remember it is the second key part needed for blood to stop bleeding.