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Matter as Software: "Autonomous, motile microdevices clearly are on the horizon. They may be regarded as the first step in the evolution of a technology for "programming" the structure and properties of material objects at the microscopic and the submicroscopic levels. As this evolution progresses, the physical and economic properties of such programmable matter are likely to become much like those of present day software." [MITRE Corporation]

Mechanochemistry: the direct, mechanical control of molecular structure formation and manipulation to form atomically precise products [K. Eric Drexler. From Nanosystems: Molecular Machinery, Manufacturing, and Computation]

Mechanosynthesis: (where) molecular tools with chemically specific tip structures can be used, sequentially, to modify a work piece and build a wide range of molecular structures. [FS] See Technical Bibliography for Research on Positional Mechanosynthesis

Mechatronics: the study of the melding of AI and electromechanical machines to make machines that are greater than the sum of their parts. [FR]

Meme: An idea that replicates through a society as it is propagated through person-to-person interaction, both direct and indirect. Memetics is a field of study that focuses on memes' role in the evolution of a culture. [ZY]

MEMS--MicroelectroMechanical Systems: generic term to describe micron scale electrical/mechanical devices. [ZY] See The beauty of MEMS: Simpler, more reliable, cheaper, and cool - Small Times for a great description and examples of use.

Mesoscale: A device or structure larger than the nanoscale (10^-9 m) and smaller than the megascale; the exact size depends heavily on the context and usually ranges between very large nanodevices (10^-7 m) and the human scale (1 m). [AS]

Messenger molecule: a chemically recognizable molecule which can convey information after it is received and decoded by an appropriate chemical sensor.

Microencapsulation: Individually encapsulated small particles. see Journal of Microencapsulation

MIMIC: [micromoulding in capillaries] one-step rapid prototyping technique.

Molecular Assembler: Also known as an assembler, a molecular assembler is a molecular machine that can build a molecular structure from its component building blocks. [ZY]

Molecular Beam Epitaxy: [MBE] Process used to make compound (multi-layer) semiconductors. Consists of depositing alternating layers of materials, layer by layer, one type after another (such as the semiconductors gallium arsenide and aluminum gallium arsenide).

Molecular Biology: [AKA: wet nano]

Molecular Electronics (ME) [moletronics]: Any system with atomically precise electronic devices of nanometer dimensions, especially if made of discrete molecular parts rather than the continuous materials found in today's semiconductor devices. [FS] Also: Using molecule-based materials for electronics, sensing, and optoelectronics .... ME is the set of electronic behaviours in molecule-containing structures that are dependent upon the characteristic molecular organisation of space .... ME behaviour is fixed at the scale of the individual molecule, which is effectively the nanoscale. [Mark Ratner & MT 5(2) p. 20

Molecular Manipulator: A device combining a proximal probe mechanism for atomically precise positioning with a molecule binding site on the tip; can serve as the basis for building complex structures by positional synthesis. [NTN]

Molecular Manufacturing: Manufacturing using molecular machinery, giving molecule-by-molecule control of products and by-products via positional chemical synthesis. [FS]

Molecular Medicine: Studying molecules as they relate to health and disease, and manipulating those molecules to improve the diagnosis, prevention, and treatment of disease. [see Medscape Molecular Medicinefor news]

Molecular Nanotechnology (MNT): Thorough, inexpensive control of the structure of matter based on molecule-by-molecule control of products and byproducts; the products and processes of molecular manufacturing, including molecular machinery. [FS]

Molecular Recognition: A chemical term referring to processes in which molecules adhere in a highly specific way, forming a larger structure; an enabling technology for nanotechnology. [FS]

Molecular Systems Engineering: Design, analysis, and construction of systems of molecular parts working together to carry out a useful purpose. [FS]

Molecular Wire: A molecular wire - the simplest electronic component - is a quasi-one-dimensional molecule that can transport charge carriers (electrons or holes) between its ends. [Michael D Ward]

MOLMAC: Molecular machine [Kilian, Gryphon]

Monomer: The units from which a polymer is constructed. [ZY]

Monomolecular Computing: the implantation inside a single molecule of ALL the functional groups or circuits to realise a calculation, without any help from external artifices such as re-configuration, calculation sharing between the user and the machine, or selection of the operational devices. [C. Joachim]

Moore's Law: Coined in 1965 by Gordon Moore, future chairman and chief executive of Intel, it stated at the time that the of number transistors packed into an integrated circuit had doubled every year since the technology's inception four years earlier. In 1975 he revised this to every two years, and most people quote 18 months. The trend cannot continue indefinitely with current lithographic techniques, and a limit is seen in ten to fifteen years. However, the baton could be passed to nanoelectronics, to continue the trend (though the smoothness of the curve will very likely be disrupted if a completely new technology is introduced). [CMP]