- montagu
- monovalent
- molecular structure
- metaphysical knowledge
- marqueterie
- malarial therapy
- mountain skink
- mentha suaveolens
- masorah
- masoretic
- mucous cyst
- mesorchium
- mason's trowel
- morvans disease
- meteorological balloon
- minimum distance code
- minimum cost minimum cost spanning tree
- minimum light
- myoma
- minimum latency coding
- magnetic cell
- marini
- mao tsetung
- michael faraday
- monodical
- murrow
- marconi rig
- maxwell anderson
- maxwell's demon
- monophysitic
- mendelsohn
- mikhail glinka
- mortons disease
- meriwether lewis
- meh
- millay
- mary therese mccarthy
- mccarthyism
- mary mccarthy
- metopion
- miguel de cervantes saavedra
- multielement dipole antenna
- mercuric
- megestrol
- moho
- moss_trooper
- mekong river
- microgauss
- marstan
- montevideo