elephant's toothpaste
English
editAlternative forms
editEtymology
editThe foamy texture and size of the resulting mass suggest a large amount of toothpaste, as might be imagined to be used by a large creature like an elephant.
Noun
editelephant's toothpaste (uncountable)
- A foamy substance caused by the rapid decomposition of hydrogen peroxide using potassium iodide as a catalyst; the outcome of a popular educational experiment in chemistry.