Spir or SPIR may refer to: *Spir, recently discovered class of actin nucleators in

actin remodeling Actin remodeling is the biochemical process that allows for the dynamic alterations of cellular organization. The remodeling of actin filaments occurs in a cyclic pattern on cell surfaces and exists as a fundamental aspect to cellular life. During ...

Afrikan Aleksandrovich Spir Afrikan Aleksandrovich Spir (1837–1890) was a Russian neo-Kantian philosopher of German- Greek descent who wrote primarily in German. His book ''Denken und Wirklichkeit'' (''Thought and Reality'') exerted a "lasting impact" on the writings o ...

(1837–1890), Russian philosopher * Juan Carlos Spir (1990) Colombian tennis player * ''Spir'' (album), an album by Karl Seglem's Sogn-A-Song *

Spir (imprint) Omniscriptum Publishing Group, formerly known as VDM Verlag Dr. Müller, is a German publishing group headquartered in Riga, Latvia. Founded in 2002 in Düsseldorf, its book production is based on print-to-order technology. The company pub ...

, an imprint of VDM Publishing that publishes and sells Wikipedia articles in printed form via print on demand *

Il spir Il Spir is a viewing platform at Conn, a location near Flims in the canton of Graubünden in Switzerland. The platform overlooking the Ruinaulta gorge of the Vorderrhein river was designed by Corinna Menn and opened in 2006. It allows a good v ...

, a viewing platform in the canton of Graubünden in Switzerland *

Spectral presaturation with inversion recovery Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio ...

, a sequence of magnetic resonance imaging

Acronyms

Serviciul de Poliție pentru Intervenție Rapidă The Serviciul Special de Poliţie pentru Intervenţie Rapidă (''Police Rapid Intervention Service'', SSPIR) was created in 1999,

, a Romanian rapid response police unit * Special Purpose Islamic Regiment, a Chechen organization * Standard Portable Intermediate Representation, an intermediate language for parallel compute and graphics by Khronos Group {{disambiguation, surname