Where did they get the name Xenomorph?!?

OK This has been baking my brain. I HATE the name Xenomorph. Most of you will probably already know this :-P now, what I really want to know is, where the HELL did they come up with it? xeno-  a combining form meaning “alien,” “strange,” “guest,” used in the formation of compound words: xenogamy, xenolith. Origin: combining form of Greek xénos stranger, guest (noun); alien, foreign, strange (adj.) A strange form. Derived from prefix xeno- to mean strange, alien, or foreign and the suffix -morph to mean form. The technical term for a monster or monstrous creature. Name invented for the http://en.wikipedia.org/wiki/Xenomorph extraterrestrial creatures in the film http://en.wikipedia.org/wiki/Alien_%28film%29 Aliens Now, with that in mind, no one believed Ripley in the first place. Without her description of the creature, they never would have come to the conclusion that these things were "strange alien forms" as I'll put it. It seems pretty lazy to use that description without ever having seen one in the flesh I think. Granted, the term does suit the strange form these things have, but remember that they can take on the physical characteristics of it's host, so in the end it may be a more fitting term than I would like. However, to go calling THE ENTIRE SPECIES this is a bit premature (in my opinion) because no one bar Ripley had ever seen one. But then, that SAME DESCRIPTION could be applied to the Space Jockeys as well, who, as far as we know until Prometheus comes out, HAVE no name yet, at least none that have been acknowledged by any of the film makers. I know there's a name floating around, but I won't get into that because I'm talking about the Aliens here. Xenomorph, as a description, could be applied to just about anything we have no recognition of and find strange and alien. So, in a sense, it does apply to these things, but Xenomorph as a NAME for the species is, at best I think, a rather broad term to use. Just want to know what you guys think, I know a lot of you call them Xenos, but I'd like to try to get a change of thought rolling here. I can buy that it does DESCRIBE them, but as a NAME for the species, if it is indeed one species and not a mix of several different alien beings, just doesn't sit right with me.............