- macroscopic level
- magnetic attraction is coition
- magnified cells are like a honeycomb
- making the unfamiliar familiar
- manifold conceptions
- mast cells explode like dirty bombs
- matter opposes change with all the means at its disposal
- meaningful learning
- mediation
- melded concept
- memory consolidation
- mental illness is like getting into a rut
- mental register
- meta-analysis
- metacognition
- metaphor
- metaphysical naturalism
- meteors and meteorites are impetuous
- meteors give birth to craters
- method of triads
- methodological naturalism
- methodology
- microbes break down food with a arsenal of chemicals
- Microbes did not accept defeat
- microbes happily cling to spacecraft
- microbes need quality sleep
- microbes think about where to live
- microbiome is part of the immune engine room
- microbiome speaks many molecular languages
- microcomponents of matter collectively give new properties like the assembled parts of a watch
- microgenetic
- minimally guided instruction
- mixed methods
- mixing of ocean water is like ploughing a field
- molecular framework
- molecule spits out fluorine atom
- molecules can be like gloves or socks
- molecules can be very unhappy and nervous
- molecules in a gas have a high old time
- molecules of different conformation prefer different reaction pathways
- monkey is concerned about lack of protein in diet
- monoclonal antibodies are like demented postal workers
- Monty Python
- Moore, Patrick
- moral rights
- Moseley, Henry
- moths thought switching to eating clothes would offer a better life
- motor impulses may be arranged into melodies
- multiple models
- multiplicity
- multiplist