The Collaborative International Dictionary
Anacoenosis
Anacoenosis \An`a*c[oe]*no"sis\, n. [Gr. ?, fr. ?, to
communicate; ? up + ? to make common, ? common.] (Rhet.)
A figure by which a speaker appeals to his hearers or
opponents for their opinion on the point in debate.
--Walker.
Wiktionary
anacoenosis
n. (context rhetoric English) A rhetorical device by which a speaker appeals to his/her hearers or opponents for their opinion on the point in debate.
Wikipedia
Anacoenosis
Anacoenosis is a figure of speech in which the speaker poses a question to an audience in a way that demonstrates a common interest.