An organic compound with the formula CH₃O₂CC₂CO₂CH₃, widely used as a dienophile in cycloaddition reactions.

(US, government, military, espionage, aerospace) Initialism of National Reconnaissance Office launch.. An NRO spacelaunch for delivering a high security government payload into space.

(mathematics) A conjecture concerning the relationship between the locations of roots and critical points of a polynomial function of a complex variable. It states that for a polynomial f(z)=(z-r_1...

A river in Aberdeenshire council area, Scotland, which joins the River Don at Inverurie.