“The scientists at the research facility are working tirelessly to construct a powerful accelerator that can propel charged particles to incredible velocities.”
“He stopped speaking suddenly when Carl jammed the van into reverse gear and slammed his foot down on the accelerator pedal.”
“Our study underscores the importance of elastin fragmentation in the vessel wall as an accelerator of atherosclerosis.”
acceleration
(uncountable) The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
(countable) The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
“An acceleration in heart rate has been observed in the subject.”
“The acceleration of population growth in the more developed regions has generated a significant number of studies.”
“I hope it will be the vehicle for acceleration in improvements in the railway system.”
accelerant
(chemistry) Any substance that can bond, mix, or disturb another substance and cause an increase in the speed of a natural or artificial chemical process.