Doublet

Look up doublet in Wiktionary, the free dictionary.

Doublet may refer to:

• Doublet (clothing), a man's snug-fitting buttoned jacket that was worn from the late 14th century to the mid 17th century
• Doublet (lapidary), an assembled gem composed in two sections, such as a garnet overlaying green glass
• Doublet (lens), a type of lens, made up of two stacked layers with different refractive indices
• Doublet (linguistics), one of two or more words of the same language that come from the same root
• Doublet state, a state in quantum physics of a system with a spin of ½
• Doublet (potential flow), fluid flow due to a source–sink combination
• Pierre Jean Louis Ovide Doublet (1749–1824), a politician and writer from France
• Word ladder or "doublets", a word game invented by Lewis Carroll
• In mathematics, the unit doublet is the derivative of the Dirac delta function
• In textual criticism, two different narrative accounts of the same actual event
• Dimeresia howellii, a tiny flowering plant.