The torque exerted by the motor during the starting period (a function of speed or slip).
The maximum torque (turning ability) produced on start of motor.
The torque at the bottom of a speed (rpm) versus torque curve. The torque developed by the motor is a percentage of the full-load or rated torque. At this torque the speed, the rotational speed of the motor as a percentage of synchronous speed is zero. This torque is what is available to initially get the load moving and begin its acceleration.
The torque produced by a motor as it begins to turn from a standstill and accelerate. Sometimes called locked rotor torque.