(n) polypharmacy
(n) poltergeist (ger:)
(n) pornography
(n) (uk) ponderosa pine (Pinus ponderosa)
(n) mercantilism
(n) Mercurochrome
merbromin
(n) (comp) markup language
(n) (comp) markup minimization feature
(n) (comp) mark reader
(n) market share
(n) martial arts
(n) Marshall Plan
(n) marginal cost
(n) marching band
(n) Murphy's Law ("Whatever can go wrong, will go wrong")
(n) Marburg school (of philosophy)
(n) microwave
(n) microwave
(n) (comp) microkernel
(n) microcurie
(n) microscope
(n) microstate
(n) microburst
(n) microbody
(n) micrometer
(n) micrometer
(n) microreader
(n) migration
(n) minor change
(n) minor level