English Dictionary

ipse dixit

/ˌɪpseɪ ˈdɪksɪt/

noun

(rhetoric) A dogmatic and unproved proposition or dictum that is accepted solely on the authority of someone who is known to have asserted it. / An authority who makes such an assertion.

The professor's ipse dixit was enough to convince the entire class.

意味（1）

(rhetoric) A dogmatic and unproved proposition or dictum that is accepted solely on the authority of someone who is known to have asserted it.

To avoid, therefore, all imputation of laying down a rule for posterity, founded only on the authority of ipse dixit—for which, to say the truth, we have not the profoundest veneration...

意味（2）

An authority who makes such an assertion.