1Something that enables a difference or distinction to be made.
- ‘the real differentiator between the two is the size’
An organ or substance that induces or controls differentiation.
- ‘in mammals, the Y chromosome is the principal sex differentiator’
3A device or circuit that outputs an electrical signal proportional to the rate of change of the input signal.
- ‘an optical feedback loop with a differentiator is required’
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