ARCH
(redirected from arch arteriosus, arcus arteriosus)Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
Related to arch arteriosus, arcus arteriosus: arcus venosus dorsalis pedis, arcus venosus jugularis, Arcus venosus juguli, arcus venosus plantaris
ARCH
Autoregressive Conditional Heteroskedasticity
A statistical measure of the average error between a best fit line and actual data that uses past data to predict future performance. General Autoaggressive Conditional Heteroskedasticity is the most common way of doing this. See also: Fractal Distribution.