(informal, humorous) A state of extreme uncleanliness, especially one which involves food mess left for an excessive period of time that is liable to spoil, rot, mold, etc.

plural of science experiment

plural of out-of-body experience

(parapsychology) An experience in which one feels outside of one’s body.

plural of near-death experience

Lessons learned from experience are the most lasting.

A sensation of detachment from one's body, the presence of a tunnel of light, the apparent viewing of one's own body from on high, and similar manifestations, experienced by people whose heart and brain have temporarily ceased to function.

The experience that a person has with a newly purchased product.

A chemical reaction in which an aqueous solution containing glucose, sodium hydroxide and methylene blue turns from colourless to blue upon shaking and then loses its colour after a while. With further shaking, the cycle can be repeated several times.

(physics, historical) An attempt in 1887 to detect the existence of the luminiferous aether by comparing the speed of light in perpendicular directions.