metr - mole
- metrhyl hydride
- metric
- metric calculation
- metric lattice
- metric measure
- metric space
- metric thread
- metric ton
- metric waves
- metrologist
- metrology
- metronome
- mettalographic examination
- mettering device
- mezzanine
- mho
- mica
- mica condenser
- mica insulation
- mica sheet
- micaceous
- micellar structure
- micelle
- micro
- microadjustment
- microanalysis
- microcellular rubber
- microfinish
- microflaw
- microfoam rubber
- microfuse
- microlite
- microlite structure
- micromesh
- micrometer
- micrometer / micrometric caliper / gauge
- micrometer / micrometric(al) screw; microscrew
- micrometer calipers with dial indicator
- micrometer depth gauge
- micrometer drum
