his·tri·on·ic (hĭs′trē-ŏnĭk) also his·tri·on·i·cal (-ĭ-kəl)
1. Of or relating to actors or acting: "The specific innovations of the commedia dell'arte were not in the domain of narrative and characterization, but in its unique stress on the histrionic abilities of the actors" (Eli Rozik).
2. Excessively dramatic or emotional; affected: "Next Father Brackin tackled a topic that was discussed in confidential—sometimes histrionic—tones around the seminary: end-of-the-year evaluations" (Jonathan Englert).
[Late Latin histriōnicus, from Latin histriō, histriōn-, actor, probably of Etruscan origin.]
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