(genetics, evolutionary theory) A reduction in genetic diversity resulting when a population is descended from a small number of colonising ancestors.

plural of nest egg

A dialect of the English language that is spoken mostly in England.

A kingdom in western Europe, until the foundation of the United Kingdom of Great Britain on 1 May 1707.

plural of knock-on effect

plural of earth closet

An engineer who is specifically trained for and/or specialised in civil engineering.

(idiomatic) To have no common sense; to be ignorant of the most basic facts; to be very confused.

A phenomenon whereby a change in the behavior of a subject being studied is an effect of the change itself or the fact of being observed rather than the nature of the change in question.

A request for a translation of a word or phrase into English.