- Mitochondrial encephalomyopathy
- Mitochondrial fission
- Mitochondrial fission factor
- Mitochondrial fusion
- Mitochondrial genome
- Mitochondrial inheritance
- Mitochondrial matrix
- Mitochondrial membrane
- Mitochondrial myopathy
- Mitochondrial neurogastrointestinal encephalomyopathy
- Mitochondrial optic neuropathies
- Mitochondrial proteins
- Mitochondrial pyruvate carrier 2
- Mitochondrial replacement therapy
- Mitochondrial respiration
- Mitochondrial toxicity
- Mitochondrial trifunctional protein
- Mitochondrial trifunctional protein deficiency
- Mitochondrial unfolded protein response
- Mitogen activated protein kinase
- Mitogen-activated protein kinase
- Mitogenesis
- Mitogens
- Mitomycin
- Mitomycin C
- Mitophagy
- Mitoquinone mesylate
- Mitosene
- Mitosis
- Mitosomes
- Mitotane
- Mitotic catastrophe
- Mitotic index
- Mitotic recombination
- Mitotic spindle
- Mitotic spindle apparatus
- Mitoxantrone
- MitraClip
- Mitragyna speciosa
- Mitragynine
- Mitral annular calcification
- Mitral annular disjunction
- Mitral cells
- Mitral regurgitation
- Mitral stenosis
- Mitral valve
- Mitral valve annuloplasty
- Mitral valve prolapse
- Mitral valve replacement
- Mitral valve stenosis
- Mitraphylline
- Mitrofanoff appendicovesicostomy
- Mitrofanoff principle
- Mittelschmerz
- Mitten
- Mixed acid fermentation
- Mixed anxiety-depressive disorder
- Mixed connective tissue disease
- Mixed episode
- Mixed gonadal dysgenesis
- Mixed incontinence
- Mixed lymphocyte reaction
- Mixed nerve
- Mixed transcortical aphasia
- Mixed-function oxidase
- Mixed-phenotype acute leukemia
- Mixing study
- Mixotrophs
- Mixotrophy
- Mixtures
- Mnemonics
- Mobile elements
- Mobility aid
- Mobilization
- Mobilome
- Mobiluncus
- Mocetinostat
- Moclobemide
- Modafinil
- Modal haplotype
- Mode
- Mode Deactivation Therapy
- Mode of action
- Model for End Stage Liver Disease
- Model for End-Stage Liver Disease
- Model organisms
- Modeling
- Moderator band
- Modern chemistry
- Moderna COVID-19 vaccine
- Modes of toxic action
- Modic changes
- Modifications
- Modified Ashworth scale
- Modified Checklist for Autism in Toddlers
- Modified Overt Aggression Scale
- Modified citrus pectin
- Modified radical mastectomy
- Modified starch
- Modifier genes
- Modiolus
- Modularity
- Modulation
- Moebius syndrome
- Moens-Korteweg equation
- Moesin
- Mogamulizumab
- Mogibacterium
- Mogroside
- Mohr-Tranebjaerg syndrome
- Mohr-Tranebjærg syndrome
- Mohs surgery
- Moiety
- Moisturizer
- Mokken scale
- Molar
- Molar absorptivity
- Molar pregnancy
- Molar tooth
- Molecular anatomy
- Molecular beacons
- Molecular biology
- Molecular breast imaging
- Molecular breeding
- Molecular chaperones
- Molecular clock
- Molecular cloning
- Molecular cytogenetics
- Molecular descriptor
- Molecular diagnostics
- Molecular diffusion
- Molecular docking
- Molecular dynamics
- Molecular epidemiology
- Molecular evolution
- Molecular formula
- Molecular genetics
- Molecular geometry
- Molecular imaging
- Molecular imprinting
- Molecular machines
- Molecular markers
- Molecular mechanics
- Molecular medicine
- Molecular mimicry
- Molecular modeling
- Molecular modelling
- Molecular motors
- Molecular neuroscience
- Molecular oncology