Nobody calls the rotor a 'vertical propeller' and translating tendency is a term of US origin, it is better understood when called tail rotor drift, with tail rotor roll the description of the fuselage attitude after the rotor had been tilted to counter the drift.
A Tail Rotor is in fact a vertical propeller that produces horizontal thrust. A Main Rotor is in fact a horizontal propeller that produces vertical trust. If you are wound too tightly to accept that description,
then you are part of the reason beginners find it difficult to understand the rotors, how they work, the job they do, and the side-effects they cause.
Bryan