also test-tube
( test tubes)
A test tube is a small tube-shaped container made from glass. Test tubes are used in laboratories.
N-COUNT
also test-tube
( test tubes)
A test tube is a small tube-shaped container made from glass. Test tubes are used in laboratories.
N-COUNT
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006