augmenter

or aug·men·tor

[awg-men-ter]

noun

a person or thing that augments.
Aviation, Rocketry. any auxiliary device, as an afterburner, for additional thrust from the exhaust of a jet or rocket engine.

Origin of augmenter

First recorded in 1525–35; augment + -er¹, -or²

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018