A very bright pink color, related to shocking pink.

A hypothetical future supercontinent.

(fandom slang) The fictional universe of Ultimate Marvel.

Extremely diffuse. / (astronomy) Specifically, designating a type of galaxy with a very low proportion of visible stars compared to the Milky Way, and hence a very low luminosity.

plural of ultimatum game

(economics) An experiment, concerning the sharing of wealth, that is designed to show the absence of rationality in economic thinking

Alternative letter-case form of ultra-Darwinism

plural of ultra-darwinist

plural of ultra-Darwinist

Alternative letter-case form of ultra-Darwinist