I would stay away from "Dead Heads". At least to people of my generation, that term already describes a certain group of people who are not zombies. Well, most of them, anyway.

For a 'technical term", some of the less-used words for 'ghost' could be repurposed. I particularly like terms like "revenant" and "wight", that have passed out of common usage.


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Regards,
Eric Fretheim
Assistant Prep Leader, 2015 October NaNoWriMo Prep Challenge

"It is perfectly okay to write garbage-- as long as you edit brilliantly." ~C.J. Cherryh

“No, writing 50,000 words in a month is normal. You are not crazy. This is not insane.” ~Teri Brown