populariser
Noun
Meaning
someone who makes something attractive to the general public
Source: WordNetSynonyms
Hypernyms
Examples
I'm sometimes asked how I would like to be remembered. I've had a diverse career as a writer, underwater explorer, space promoter and science populariser. Of all these, I want to be remembered most as a writer - one who entertained readers, and, hopefully, stretched their imagination as well.
The original populariser of Marxism in Russia, Georgi Plekhanov used the terms "dialectical materialism" and "historical materialism" interchangeably.
He was also a populariser of mathematics and physics and wrote several books for the lay public.