TEST-TUBE Meaning of TEST-TUBE in English test-tube BrE AmE ˈtes t tjuːb ⇨-tʃuːb AmE \ -tuːb -tjuːb ▷ test-tube|s z▶ ˌ test-tube ˈ baby BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012