(film) The filmmaking technique of shooting foreground action against an evenly-lit monochromatic background for the purpose of removing the background from the scene and replacing it with a different image or scene.

(organic chemistry) The synthetic dye indigotin used to replace natural indigo

plural of blue belly

Alternative form of bluebelly

A mountainous region of New South Wales, Australia. / A small mountain range on Ellesmere Island, Nunavut, Canada.

Discontinuous corridor of urbanisation in Western Europe stretching from North West England to Milan.

A perennial American herb (Caulophyllum thalictroides), the root of which is used in medicine.

plural of Prussian blue

plural of blue-black

A pair of blue jeans. / attributive form of blue jeans