The throwaway line in Aliens that spawned decades of confusion | Ars Technica

" Sigourney Weaver’s Ripley stands in front of the squad of ten cocky, poised space marines. They laugh and joke, oozing bravado and testosterone—even the women. As the shavetail lieutenant lays out the situation, Bill Paxton’s mouthy PFC Hudson interrupts: "Is this going to be a stand-up fight, sir, or another bug hunt?"

"All we know is that there’s still no contact with the colony," replies the lieutenant, Gorman, "and that a xenomorph may be involved."

"Excuse me, sir," interjects PFC Frost from the back row, "—a what?"

"A xenomorph," repeats Gorman, emphasizing the syllables. It's one of the few times in all four Alien series films where the creatures are referred to directly, rather than obliquely as "them" or "it."