differentiator
[ dif-uh-ren-shee-ey-ter ]
/ ˌdɪf əˈrɛn ʃiˌeɪ tər /
noun
a person or thing that differentiates.
Computers.
an electronic device whose output signal is proportional to the derivative of its input signal.
Electricity, Electronics.
a transducer or circuit (differentiator circuit) whose output is proportional to the rate of change of the input signal.
Origin of differentiator
First recorded in 1885–90;
differentiate +
-or2