Examples from the Web for intensifier
As Felix put it, he was "very dead," though the word hardly admits of an intensifier.Four Young Explorers|Oliver Optic
Not only is the current a messenger, but it is also an intensifier of magical power.Fragments of science, V. 1-2|John Tyndall
The apparatus known as an intensifier was then used, by which any pressure required could be obtained.
The bulb hangs downward from the terminal t, the zinc sheet Z, performing the double office of intensifier and reflector.
Avoid, in writing, the use of so as an intensifier: “so good;” “so warm;” “so delightful.”The Elements of Style|William Strunk