- metal ceiling
- metal dowel
- metal hose
- metal shoes
- metal trim
- metal valley
- metal-clad
- metallic chip
- metallic corrosion
- metallic lath
- metallic tank
- metallized glass
- metallizer
- metallurgical industry
- meter cupboard
- metering accessories
- methane tank
- meticulous inspection
- metric coherence
- mezzanine story
- microdistrict
- microfissure
- micromap
- micrometer
- microrelief
- microseism
- message center
- message redundancy
- metabolize
- metal brush
- metal chimney
- metal corrosion
- metal creep
- metal cutting
- metal cylinder
- metal deck
- metal floor
- metal flooring
- metal pier
- metal roofing
- metal shore
- metal tie
- metal window
- metaled road
- metalic paint
- metamorphic rock
- metamorphic zone
- methane
- metronomic
- metropolis
- metropolitan road
- mica powder
- microfilm copy
- microfilm reader
- microfiltration
- micronized
- microoperation
- micropenetration method
- microphone boom
- middle rail
- middle surface
- middle third
- middle web
- MIDI setup
- midspan moment
- migration balance
- mild climate
- military architecture
- mill-mixed
- millimeter grid
- milling bodies
- milling cutter
- millwright
- minaret
- mind
- mine
- mine chamber
- mine digging
- mine fan
- mine lamp
- mine surveying
- mineral
- minimum chips
- minimum pressure
- minimum runoff
- minimum spacing
- mining city
- mining geodesy
- mining technique
- minor accident
- miogeosyncline
- mirror image
- mirror reflexion
- misconnection
- mismachine
- misrepresent
- miter gate
- mitre bend
- mitre joint
- mix calculation