Twit me with the decrements of my pendants. --Ford.
Rocks, mountains, and the other elevations of the
earth suffer a continual decrement. --Woodward.
2. The quantity lost by gradual diminution or waste; --
opposed to {increment}.
3. (Crystallog.) A name given by Ha["u]y to the successive
diminution of the layers of molecules, applied to the
faces of the primitive form, by which he supposed the
secondary forms to be produced.
4. (Math.) The quantity by which a variable is diminished.
{Equal decrement of life}.
(a) The decrease of life in a group of persons in which
the assumed law of mortality is such that of a given
large number of persons, all being now of the same
age, an equal number shall die each consecutive year.
(b) The decrease of life in a group of persons in which
the assumed law of mortality is such that the ratio of
those dying in a year to those living through the year
is constant, being independent of the age of the
persons.