The phenomenon of granular convection or segregation, where granular material subjected to shaking or vibration exhibits circulation patterns like those of a fluid, causing the larger particles to end up on top.

(chemistry) The net nuclear charge that an electron in an atom experiences, after subtracting the nuclear charge shielded by other electrons.

(paleontology) The principle that due to the incompleteness of the fossil record, the earliest and latest known occurrences of a taxon will almost never represent the ages of the actual earliest and latest organisms belonging to it.

A reduction in thyroid hormone levels caused by ingestion of a large amount of iodine.

(thermodynamics) The temperature change of a real gas or liquid (as differentiated from an ideal gas) when it is forced through a valve or porous plug while kept insulated so that no heat is exchanged with the environment.

Synonym of Jod-Basedow phenomenon

A non-arbitrary mapping between speech sounds and the visual shape of objects.

A loss of interest in buying a product in a crowded store if one is inadvertently touched from behind by another shopper passing by.

(graphical user interface) The distracting overuse of colour in a user interface.

A cognitive bias comprising a tendency to overestimate the likelihood of one's success at a task perceived as difficult, and to underestimate that likelihood at a task perceived as easy.