Molecular-sieve
noun, Chemistry.
1.
a compound with molecule-size pores, as some sodium aluminum silicates, that chemically locks molecules in them: used in purification and separation processes.
noun
1.
(chem) a material that can absorb large amounts of certain compounds while not absorbing others and is thus suitable for use in separating mixtures
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- Molecular-spectrum
noun, Spectroscopy. 1. the spectrum of light emitted or absorbed by a species of molecule.
- Molecular surgery
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- Molecular volume
noun 1. the volume occupied by one mole of a substance Also called molar volume
- Molecular-weight
noun, Chemistry. 1. the average weight of a molecule of an element or compound measured in units once based on the weight of one hydrogen atom taken as the standard or on 1/16 (0.0625) the weight of an oxygen atom, but after 1961 based on 1/12 (0.083) the weight of the carbon-12 atom; the sum […]
- Molecule
[mol-uh-kyool] /ˈmɒl əˌkyul/ noun 1. Chemistry, Physics. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2. Chemistry. a quantity of a substance, the weight of which, measured in any chosen unit, is numerically equal to […]