macerate
maceration
machine pruner
macroclimate
macroelement
maderization
maderize
magnesium
magnum
main label
male vine
malic acid
mallet
malolactic fermentation
maltase
malvidin
malvidin-3-glucoside
manganese
mannitol
mannoprotein
MAP
marc
margarodes
market access
market cap
market capitalisation
market entry
market price
market research
market segment
marsala
masculine
mass selection
mass spectrometry
material other than grape
maturation
maturation cellar
mature
maturity
MBR
mealy bug
meaty
mechanical grape harvester
mechanical harvesting
mechanical pruner
mechanical pruning
medium cream sherry
medium-bodied
medium-dry
medium-sweet
Melchior
mellow
membrane bioreactor
membrane bioreactor treatment plant
membrane filter
membrane filtration
mercaptan
meristem
mesocarp
mesoclimate
metabolic flux
metabolic pathway
metabolism
metabolite
metabolomics
metal closure
metal closure liner
metal haze
methanol

method cap classique
méthode champenoise
methoxypyrazine
Methuselah
methyl alcohol
micro-irrigation
micro-oxygenation
microarray chips
microbe
microbial contamination
microbial inoculant
microclimate
microelement
microenterprise
microfiltration
microflora
micronutrient
microorganism
microtitre plate reader
microvinification
middle cut
midpalate
milkiness
mineralise
miniature
minimal pruning
minimum pruning
mist blower
mist sprayer
mite
MLF
mobile bottling line
mobile cradle
MOG
molecular biology
mono ammonium phosphate
mono pump
monoterpene
mother plant
mother tank
mother unit
mother vine
moths
mottle leaf
mousey
mousiness
mousse
mousy
mouth-feel
mouth-feel wheel
mouthcoat
mulch
multipass valve
multivariate statistical analysis
muscadel
muscat
muselet
must
must chilling
musty
mutagen
mutant
mutation
mutation breeding
muzzle
mycoplasma
mycotoxin