Laboratory vessel (6)
(Other definitions for test tube that I've seen before include "Container for precipitation" , "Lab equipment" , "Lab vessel" , "'Laboratory glass cylinder (4,4)'" , "Thin glass receptacle used in laboratory" .)
(Other definitions for beaker that I've seen before include "Cup with a wide mouth" , "Tall cup or tumbler" , "Open glass, straight with lip, used in laboratory" , "Small open glass with straight sides and a lip" , "Mug - large glass" .)