dramatic dialogue, as in a Greek play, characterized by brief exchanges between two characters, each of whom usually speaks in one line of verse during a scene of intense emotion or strong argumentation.
stich·o·myth·i·a (stĭk'ə-mĭth'ē-ə) n. An ancient Greek arrangement of dialogue in drama, poetry, and disputation in which single lines of verse or parts of lines are spoken by alternate speakers.
[Greek stikhomūthiā, from stikhomūthein, to speak in alternating lines : stikhos, stich; see steigh- in Indo-European roots + mūthos, speech.] stich'o·myth'ic adj.