Thanks, jesselt!

I actually knew what the word meant as I hear it in the media everyday now. I was wondering if there was a technical English counterpart.

Jesselt left off the part that said "(caused by the chemical nonenal)." 2-Nonenal - Wikipedia, the free encyclopedia
Is that what you were looking for? Otherwise, "body odor" qualified with "of the elderly" or the like is probably about as neutral as you can get. I've never heard it referred to as anything other than "old people/man/lady smell" since mentioning it in a non-scientific context seems kind of crude.

Yes, I know of no technical term, but the slightly offensive (you wouldn't say it around an elderly person) "old lady/man/person smell" is what people say. I usually say "old man smell" or "old person smell." I've heard people say "lady," but I don't think it's that common.

The most polite way I know of saying it is "it smells like mothballs."