Well, in other electronic device, say one type of temperature sensor, let's say microchip's MCP9701A you can have accuracy of +/-2 Celcius with a precision of 0

Well, in other electronic device, say one type of temperature sensor, let's say microchip's MCP9701A you can have accuracy of +/-2 Celcius with a precision of 0,01V per Celcius. In this case Accuracy mean the reference as in: this device reads 10C but could actual temperature could be 8 or 12. Because it drift according to multiple factors. Precision means the linearity or if you prefer resolution (I think). Datasheet for the device says +/-0,5C meaning you can't have a reading more precise than 1C with that device. I think the term linearity apply if you try to mesure below that value: the reading may become non-linear because of fluctuaction, noise or other errors in the device.