Slan definitions

Slan

1) Fictional mutant 2) What italicized letters do
Found on https://www.crosswordclues.com/clue/slan

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Slan

(from the article `Van Vogt, A.E.`) ...magazine. He became a regular contributor, as did Isaac Asimov and Robert Heinlein, and the trio introduced the `golden age` of science fiction. ...
Found on http://www.britannica.com/eb/a-z/s/107

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