Crossword Genius

Scientist's cylinder (4,4)

Ross

I believe the answer is:

test tube

'scientist's cylinder' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for test tube that I've seen before include "item of scientific use?" , "experimental site" , "scientific birthplace" , "where reactions are observed" , "Scientist's cylindrical glass" .)

I've seen this clue in The Sun.
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