It is common practice to describe the frequency response based on the location of the transfer functions poles.
For second order functions, the pole frequency is approximately equal to the so called "corner frequency" (end/begin of the path band for lowpass/highpass filters)
In particular, for the Butterworth response, the pole frequency equals the 3-dB frequency.
In case of a (second order) bandpass, the pole frequency is identical to the center frequency.
That means: In SC filters you can externally control the corner frequency and/or the center frequency, respectively.