Month

Montmorillonite

Moon

Moose

Moraxella

Mordant

Mormonilloida

Morotopithecus

Morphine alkaloids

Morphogenesis

Morphometrics in paleontology

Mortar

Mosaicism

Mosquito

Mössbauer effect

Motion

Motion of zero-gravity droplets

Motivation

Motor

Motor system (neuroscience)

Motor vehicle event data recorder

Motor-generator set

Motorcycle

Mountain

Mountain meteorology

Mountain systems

Mouth

Mouth disorders

Movable bridge

Moving-target indication

Movius Line

mTOR

Mucilage

Muffler

Mugiliformes

Mulberry

Mule

Multicomponent reactions

Multidimensional scaling

Multiferroics

Multihull ships

Multilevel control theory

Multimedia technology

Multimeter

Multimoment microphysical parameterizations in cloud models

Multiphysics modeling of nuclear reactors

Multiple cropping

Multiple ionization (strong fields)

Multiple proportions, law of

Multiple sclerosis

Multiple-proton radioactivity

Multiplexing and multiple access

Multiplication

Multipole radiation

Multiprocessing

Multiservice broadband network technology

Multispectral satellite observations of severe storms

Multituberculata

Multivariable control

Multivesicular bodies: biogenesis and function

Multivibrator

Mumps

Muon-catalyzed fusion

Muonium

Muscle

Muscle development and regeneration

Muscle proteins

Muscovite

Muscular dystrophy

Muscular system

Muscular system disorders

Mushroom

Mushroom pharmacy

Mushroom sclerotia

Musical acoustics

Musical instruments

Musk-ox

Muskeg

Muskmelon

Muskrat

Mustard

Mutagens and carcinogens

Mutation

Mutualism

MXenes

Myasthenia gravis

MYB transcription factors in plants

Mycobacterial diseases

Mycology

Mycoplasmas

Mycorestoration

Mycorrhizae

Mycotoxin

Myctophiformes

Myeloma

Myiasis

Myliobatiformes

Mylonite

Myodocopa

Myodocopida