See Also: antipellagra factor(medicine)
factor 3(medicine)
factor Xa(medicine)
factor h(medicine)
factor ixa(medicine)
X Factor(money)
x factor(medicine)
factor xia(medicine)
Factor(finance)
factor P(medicine)

Poisson (iou) and antipellagra factor (medicine)


Poisson (iou)



Poisson noun. E20.
[S. D. Poisson (1781-1840), French mathematician and physicist.]
Math. Used attrib. and in possess. to designate mathematical and statistical concepts introduced or discussed by Poisson.
Poisson distribution a discrete frequency distribution which gives the probability of x independent events occurring in a fixed time and takes the form emmx/x! where m is a parameter and e = 2.718... . Poisson law, Poisson's law: expressed by the Poisson distribution. Poisson's ratio the ratio of the proportional decrease in a lateral measurement to the proportional increase in length in a sample of material that is elastically stretched.
Poissonian adjective of, pertaining to, or designating the Poisson distribution E20.

antipellagra factor (medicine)


antipellagra factor -->
nicotinic acid


A precursor of NAD, that is a product of the oxidation of nicotine.