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molecular US English

Of, relating to, or consisting of molecules

low-molecular US English

Having a low molecular weight.

molecular beam US English

A narrow directed beam of molecules, ions, or atoms.

molecular clock US English

The average rate at which a species' genome accumulates mutations, used to measure their evolutionary divergence and in other calculations

molecular heat US English

The heat required to raise the temperature of one gram-molecule of a compound by one degree; the product of the molecular weight of a compound and its specific heat.

molecular layer US English

A layer of molecules.

molecular mass US English

= molecular weight.

molecular sieve US English

A crystalline substance (especially a zeolite) with pores of molecular dimensions that permit the passage of molecules below a certain size

molecular wire US English

A polymer molecule that conducts electricity along its length, usually as a result of having a conjugated chain and delocalized electrons.

molecular biology US English

The branch of biology that deals with the structure and function of the macromolecules (e.g., proteins and nucleic acids) essential to life

molecular formula US English

A formula giving the number of atoms of each of the elements present in one molecule of a specific compound

molecular fossil US English

A molecule whose presence in ancient rocks is regarded as evidence of the existence or early development of life; (in extended use) a molecule regarded as representing a feature of an earlier stage in development or evolution.

molecular machine US English

A complex molecule which carries out a specific physical or chemical task, especially one involving the spatial manipulation of atoms.

molecular orbital US English

An electronic orbital in a molecule.

molecular rotation US English

Rotation of a molecule or part of a molecule.

molecular weight US English

The ratio of the average mass of one molecule of an element or compound to one twelfth of the mass of an atom of carbon-12

molecular biological US English

Of or relating to molecular biology.

molecular biologist US English

A person engaged in or expert in molecular biology.

molecular electronics US English

A branch of electronics in which individual molecules perform the same function as microelectronic devices such as diodes

molecular gastronomy US English

The application of scientific principles to the understanding and development of food preparation

gram-molecular weight US English

The quantity of a chemical compound equal to its molecular weight in grams; now usually replaced by the mole. Also called gram molecule

molecular beam epitaxy US English

A technique used in the manufacture of semiconductor devices in which a molecular beam is used to deposit a very thin or monomolecular layer of a substance on to a crystalline substrate; abbreviated MBE.

relative molecular mass US English

The ratio of the average mass of one molecule of an element or compound to one twelfth of the mass of an atom of carbon-12

molecular electronic in molecular electronics US English

molecular electronic materials and inorganic particles