(zoology) Any tetrapod in the family Diplocaulidae.

plural of diplocercid

(zoology) Any extinct coelacanth fish in the family Diplocercidae.

plural of diplocaulid

plural of diplomatic bag

A form of tinnitus in which a single auditory stimulus is perceived as two separate sounds which may differ in pitch or in time.

A variety of bread and butter pudding.

(telegraphy) Involving the transmission of two messages in the same direction at the same time.

(radio) Simulcast the same signal on two frequencies. / (radio) Combine two signals using two frequencies onto one cable.

(historical) The exchange of ping pong players between the United States and the People's Republic of China in the early 1970s, marking a thaw in relations between the two countries.