See Also: Factor XIIa(medicine)
factor XII(medicine)
factor Xa(medicine)
factor h(medicine)
factor ixa(medicine)
X Factor(money)
x factor(medicine)
factor xia(medicine)
Factor(finance)
factor P(medicine)

microtone (iou) and Factor XIIa (medicine)


microtone (iou)



microtone noun. E20.
[from MICRO- + TONE noun.]
A musical interval smaller than a semitone.
micro'tonal adjective of or pertaining to a microtone or microtones; employing or producing microtones: M20.
microto'nality noun the use of microtones M20.
microtonally adverb M20.

Factor XIIa (medicine)


factor xiia
<enzyme> Activated form of factor xii. In the initial event in the intrinsic pathway of blood coagulation, kallikrein (with cofactor high molecular weight kininogen) cleaves factor xii to xiia. Factor xiia is then further cleaved by kallikrein, plasmin, and trypsin to yield smaller factor xii fragments (hageman-factor fragments). These fragments increase the activity of prekallikrein to kallikrein but decrease the procoagulant activity of factor xii.

Registry number: EC 3.4.21.38