Alien

This creature has no specific name, and has been referred to most often onscreen, and in the credits of each film, simply as the Alien. It was called an alien, and an organism, in the first film. It has also been referred to as a creature, a serpent, a beast, a dragon, a monster, or simply, a thing. The term xenomorph (lit. "alien form"—from Greek xeno- or "strange" and -morph, shape) was used by the character Lieutenant Gorman in Aliens[1] and by Ellen Ripley in a deleted scene from Alien 3.[2] This term has been adopted by fans[11] and used in merchandising as a convenient name. The species' binomial names are given in Latin as either Internecivus raptus (meant as "murderous thief") in the Alien Quadrilogy DVD or Lingua foeda acheronsis (meant as "foul tongue from Acheron")[13] in some comic books. The main Alien from Alien vs. Predator is listed in the credits as "Grid", after a grid-like wound received during the film