Test Tube 🧪
Copy & Meaning

A test tube — representing scientific experimentation, laboratory work, and the empirical testing that advances human knowledge. Test tubes are among the most recognizable symbols of science — the glass tube containing liquids being mixed, heated, or observed. Laboratory science underlies medicine, materials development, food science, and virtually every technology people depend on daily.

'Test tube baby' (in vitro fertilization) uses the test tube as shorthand for laboratory-assisted reproduction. Used for science and research content, chemistry and biology laboratory discussions, scientific methodology, medical research, the 'experimenting with new approaches' metaphor, and any context where the systematic testing of ideas through controlled experimentation needs visual representation.