An annuity can be a single life annuity or a joint life annuity where the payments are guaranteed until the death of the second annuitant. It is regarded as ideal for retirees as it is the only income of any financial product that is fully guaranteed.
Definition: The Kelvin temperature scale is an absolute temperature scale based on the definition that the volume of a gas at constant (low) pressure is directly proportional to temperature and that 100 degrees separates the freezing and boiling points of water.
A more fundamental scale is the Kelvin scale, which sets 0 at the absolute zero of temperature (corresponding to â 273.15 Â° C), and adopts a scale in which the triple point of water (the temperature at which ice, water, and water vapor coexist at equilibrium) is exactly 273.16 K.