decrement
Concise Oxford English Dictionary © 2008 Oxford University Press:
decrement /ˈdɛkrɪm(ə)nt/
▶noun
- 1 technical a reduction or diminution.
- 2 Physics the ratio of the amplitudes in successive cycles of a damped oscillation.
– origin C17: from L. decrementum ‘diminution’, from decrescere ‘to decrease’.
'decrement' also found in these Oxford entries:

