I am utterly certain that the term "neutronium" predates Trek, though at the moment the earliest citation I can come up with is the Larry Niven short story "Neutron Star," which is copyright 1966: "In one blazing explosion most of the star would change from a compressed mass of degenerate matter to a closely packed lump of neutrons: neutronium, theoretically the densest matter possible in this universe." I'll bet you I can find a 1950s reference before I'm done.
Damn, out-did myself! Hal Clement's first story, "Proof," describes a spacefaring race of "neutronium" creatures who evolved in the Sun. It was published in ... wait for it ... 1942.
I didn't mean to imply that the writers created the term, only that they popularised it. Oppenheimer also used the term as far back as 1938. The reference for "neutronium" being popularised by Star Trek is from Lawrence M Krauss's book "The Physics of Star Trek", (1995), page 141. (Krauss holds the Chair of Physics at Case Western Reserve University). [1].
On a another topic, article says:
Try this - http://whatis.techtarget.com/definition/0,,sid9_gci514355,00.html
Universally is probably a bit strong, frequently would be better. There was a Time magazine cover story on Nanites (using that term).
I don't see any immediate problem with having an essay or even a whole set of pages saying how Star Trek got stuff wrong. What bothers me is the notion that a whole bunch of people might start a whole series of essays that constitute, essentially, original research on comparative this-and-that. I'm honestly not sure what to think about this yet, but my first impression is that this and similar articles would indeed constitute original research and not an encyclopedia article.
Fine - I said it was whimsical :) We can remove it to somewhere else later. - MMGB
Of course it was, and if I was using it to try and promote a film, I would be violating copyright. Using it as a phrase in this context constitutes fair usage.