DECREMENT
decrease, decrement
(noun) the amount by which something decreases
decrease, decrement
(noun) a process of becoming smaller or shorter
Source: WordNet® 3.1
Etymology
Noun
decrement (plural decrements)
A small quantity removed or lost. One of a series of regular subtractions.
Synonyms
• See also decrement
Antonyms
• increment; See also adjunct
Verb
decrement (third-person singular simple present decrements, present participle decrementing, simple past and past participle decremented)
To decrease a value by a basic quantity unit.
Antonyms
• increment
Source: Wiktionary
Dec"re*ment, n. Etym: [L. decrementum, fr. decrescere. See Decrease.]
1. The state of becoming gradually less; decrease; diminution; waste;
loss.
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
Ant: increment.
3. (Crystallog.)
Definition: A name given by Haüy 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.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition