- metallized screen
- metallogenetic element
- metamorphic water
- metamorphosis
- metaskannic
- metathenardite
- meteoric iron
- metering pump
- methanal
- methane series
- methanol
- methanometer
- methoxide
- methoxyl
- methyl benzene
- methyl chlohexane
- methyl radical
- methylated spirit
- methylbutadiene
- methylene blue
- methylpropance
- meymacite
- miargyrite
- microcapsule
- microcosmic salt
- microcrystalline limestone
- microdevice
- microdiorite
- microfelsitic
- microfluidal texture
- microgranite
- microlitic
- micromagnetometer
- micrometric screw
- microseismic
- midget set
- midrib
- mild steel
- milky quartz
- millerite
- mesolitic rock
- mesomeric effect
- mesomerism
- mesomorphic state
- mesonic atom
- mesostasis
- mesotartaric acid
- mesothermal deposit
- mesothorium
- mesozoic
- messelite
- messmate
- metabolic water
- metabrushite
- metahalloysite
- metahewettite
- metal electrode
- metal mist
- metal spraying
- metallic silver
- metalliferous mine
- metallurgist
- metamorphic differentiation
- metaphosphoric
- metasilicic
- metavoltine
- meter wire
- methacrylic
- methane alcohol
- methanolic
- methine
- methoxybenzene
- methyl acetate
- methyl rubber
- methylacrolein
- methylaniline
- methylbenzene
- methylene iodide
- methylpropene
- micanite
- microbiological study
- microcellular rubber
- microclastic
- microcreep
- microcrystalline
- microencapsulation
- microfelsitic texture
- micrometry
- microporous barrier
- microtexture
- mesothermal vein
- mesotype
- mesozone
- meta-acid
- metabisulfite
- metabisulphite
- metacellulose
- metacinnabarite
- metacolloid
- metacryst