The abduction of a person by extraterrestrials.

(sometimes offensive) A person who is within the boundaries of a political state without the authorization of the government of that state; a national of another country who has entered or stayed without permission.

plural of alien priory

A small religious house dependent on a large monastery in some other country.

plural of alien abduction

(botany) A plant that appears with no apparent human assistance but does not develop a sustained population.

(fandom slang) April 26, as a "fan holiday" celebrating the science-fiction horror franchise "Aliens". The date 4/26 is in reference to fictional planet LV-426 where the Xenomorph was first unveiled.

Any nucleic acid composed of bases other than adenine, guanine, thymine, uracil and cytosine and/or sugars other than ribose and deoxyribose, that could form the basis of extraterrestrial carbon-based life.

(neurology, psychiatry) A condition in which a person experiences their limbs acting seemingly on their own, without control over the actions.

plural of alien hand syndrome