(n) machine-vision
(n) McCarthyism
(n) mashed potato
(n) mushroom
(P)
(n) (obsc) citron (Citrus medica)
(n) mysticism
(n) misch metal
(n) musician
(P)
(n) milling machine
(n) milk shake
(n) Japanese beautyberry
callicarpa japonica
(n) mail-system
(n) mail chute
(n) main shaft
(n) main series
(n) medicine ball
(n) measuring cylinder (ger: Messzylinder)
graduated cylinder
(n) mesh data
(n) meritocracy
(n) undershirt (spa: medias, por: meias, eng: shirt)
(n) Menshevik (member of the non-Leninist wing of the Russian Social Democratic Workers' Party) (rus: Men'sheviki)
(n) membership
(n) (comp) motion advertisement
(n) motor show
(P)
(n) modal shift (esp. changes in freight transport, e.g. from air to sea)
(n) motivation
(n) (uk) monk seal (Monachus spp.)
(n) (uk) small cabbage white butterfly (Pieris rapae)
(n) (1) (uk) large pink (Dianthus superbus var. longicalycinus)
(2) woman who displays the feminine virtues of old Japan
(n) (uk) Chamisso's lousewort (Pedicularis chamissonis var. japonica)