The Collaborative International Dictionary
Prolonger
Prolonger \Pro*long"er\, n. One who, or that which, causes an extension in time or space.
Wiktionary
prolonger
n. One who or that which prolongs, or lengthens in time or space.
Usage examples of "prolonger".
The irony was that such deadliness should come to flower here on Arrakis, the one source in the universe of melange, the prolonger of life, the giver of health.