- Man-in-the-middle attack
- Ontogeny
- Open source software
- Eluvial deposit
- Manganese
- Neoformation
- Earth-grazing asteroid
- Proof of Concept
- M67
- Agglutinogen
- Hybrid hard drive
- Ecodriving
- Hornfel
- CFC
- Conformator
- Genotype
- Atherogenic
- Astrocyte
- Trachyte
- Lymphoma
- Mublcom
- Old karst
- Ion exchanger
- Succinic acid
- Mosasaurus
- Catalpa
- Malacology
- Black walnut
- BOD5
- Pull-apart sedimentary basin