Synonyms for Test tube:

• adj.

  •in vitro (adjective)
  • artificial insemination,
  • test-tube,
  • outside the womb.

• n.

  •artifact (noun)
  • test tube.

• Other synonyms:

  •
  • accelerator.
  •cruet
  • phial.

Hyponym for Test tube:

• n.

  • artifact
    tube, tubing.