PWM may refer to:

Science and technology

Position weight matrix A position weight matrix (PWM), also known as a position-specific weight matrix (PSWM) or position-specific scoring matrix (PSSM), is a commonly used representation of motifs (patterns) in biological sequences. PWMs are often derived from a set ...

, a representation in motifs in biological sequences *

Pulse-width modulation Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a method of reducing the average power delivered by an electrical signal, by effectively chopping it up into discrete parts. The average value of voltage (and current) fed ...

, a technique for controlling the average power delivered by an electrical signal * PWM (window manager), a Unix-based X window manager

Other uses

* ''

Panzerwurfmine The ''Panzerwurfmine'' (abbreviated to PWM) was a shaped charge hand-thrown anti-tank grenade used by ''Luftwaffe'' ground troops in World War II. Appearance The ''Panzerwurfmines appearance owed much to the ''Panzerfaust'' (specifically its warh ...

'', a type of German anti-tank hand grenade *

Portland International Jetport Portland International Jetport is a public airport two miles (3 km) west of downtown Portland, Maine, United States. It is owned and operated by the City of Portland. A portion of the Jetport's property, including the main runway, is loca ...

, an airport in the U.S. * '' Professional Wealth Management'', a financial magazine * Permanent Way Machine, the British Rail Class 97/6 locomotives *

Polskie Wydawnictwo Muzyczne The PWM Edition ( pl, 'Polskie Wydawnictwo Muzyczne', abbreviated as PWM) is a music publishing house based in Kraków, Poland. It was founded in 1945 and was the only music publisher in Poland for several years. In 2012 it released the twelfth vo ...

, the Polish Music Publishing House {{disambiguation