effective, average, marginal. -The effective tax rate is the best measure of the tax burden because it is the average level of tax on all income from taxable and nontaxable sources. -The average tax rate measures the average level of tax on only taxable income.
Navigating the eschaton. The eschaton is something to be avoided and something to be courted. It is a virtual singularity of human consciousness marking the end of the historical epoch. In itself it is a neutral event, one to be reckoned with. It is a point of leverage for wielding the human spirit.
chitin ous layer [Gr. chiton-an outer covering, tunic]. A thick, clear layer of an Ascaris egg shell which is composed of chitin and protein and provides a protective coating located between the fertilization membrane and the ascaroside layer.hiton, a tunic, undergarment]. A structural polysaccharide of an amino sugar found in many fungi and in the exoskeleton s of all arthropods. chlorophyll ... ~ /KITE-in/ A structural polysaccharide that is the main component of the exoskeleton s of all arthropods and the cell wall s of fungi.