Definition of "xenomorphic" []

• Noting or pertaining to a mineral grain that does not have its characteristic crystalline form but has a form impressed on it by surrounding grains; anhedral (adjective)
• In an unusual form; having a strange form (adjective)

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• "First designed by H.R. Giger in 1979, the menacing star of the Alien series is a unique xenomorphic being."
• "Now turn those vicious xenomorphic monsters back into what they were . . . something to carve a swath through hapless humans in true horror fashion, instead of just duking it out with each other like some kind of horrific version of Rock-Em-Sock-Em Robots."
• "Wisely, she completely shaved it all off for Alien 3, but perhaps she could have fared better with the aliens has it been intact, as those fleeting xenomorphic creatures were probably scarred shitless when originally confronted with that killer perm creation."