that steps up, or increases; specif.,
- designating a transformer in which the output voltage is greater than the input voltage
- designating a gear that increases the speed
an increase, as in amount, intensity, etc.
- Increasing in steps or by stages.
- Electricity Serving to increase voltage: a step-up transformer.
An increase in size, amount, or activity.
(comparative more step-up, superlative most step-up)