If it walks like a duck and quacks like a duck...

How many uses of duck do we have in technology today? Duck typing, duck test, etc..

And now, suggesting one more: duck, ducks - a physical unit (typically, voltage) corresponding to 1 LSB in raw integer data sent to a DAC (or ADC) for further conversion to voltage.

Example - "5V corresponds to 4096 ducks", "Atmospheric presure is 2200 ducks with this sensor", etc