A symbol, portrayed as a fish with legs, used to indicate support for the scientific theory of evolution as being the cause of species diversification, rather than creationism.

The theory that the laws of evolution by natural selection also apply to social structures.

(humorous) One of the international honours awarded to people who supposedly help to improve the human gene pool by "removing themselves from it in a spectacularly stupid manner."

(Australia, informal) A 2.25 litre bottle of beer, today made principally as a tourist novelty.

plural of Darwin Award

The modern synthesis of Charles Darwin's theory of natural selection with the modern genetic understanding of heredity.

plural of Darwin stubby

(fluid dynamics) The phenomenon by which a fluid parcel is permanently displaced after the passage of a body through a fluid – the fluid being at rest far away from the body.

The date of February 12, an annual celebration of the birth of Charles Darwin in 1809.

Alternative letter-case form of ultra-Darwinism