mimesis

n. mimicry; imitation; close resemblance (also of animals)

Mimesis (μίμησις from μιμεîσθαι) in its simplest context means imitation or representation in Greek.
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Mimesis /mi·me·sis/ the simulation of one disease by another.mimet´ic mi·me·sis n. 1. The appearance of symptoms of a disease not actually present, [more]Mimesis - Community and Resources

Noun
1. the imitative representation of nature and human behavior in art and literature
(hypernym) imitation
2. any disease that shows symptoms characteristic of another disease
(hypernym) disease
(part-holonym) hysteria, hysterical neurosis
3. the representation of another person's words in a speech
(hypernym) quotation, quote, citation

(n.)
Imitation; mimicry.