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test tube

2 ENTRIES FOUND:
  1. test tube (noun)
  2. test-tube (adjective)

test tube

noun

Definition of TEST TUBE

: a plain or lipped tube usually of thin glass closed at one end and used especially in chemistry and biology
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First Known Use of TEST TUBE

1846

Rhymes with TEST TUBE

boob tube, Danube, flashcube, haboob, j'adoube, jujube

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