ə̇n.ˈten(t)səˌfī(ə)r noun
( -s )
: one that intensifies: as
a. : a device (as a two-part cylinder with rigidly connected pistons of different diameters) for stepping up fluid pressure
b. : a photographic intensifying reagent
c. : a gene that enhances the normal effect of another nonallelic gene when both are present
d. : intensive
words … which have been used emotively as intensifiers — William Empson