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Disulphuric :: Disulphuric (a.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation.

Atomicity :: Atomicity (n.) Degree of atomic attraction; equivalence; valence; also (a later use) the number of atoms in an elementary molecule. See Valence.

Vacuist :: Vacuist (n.) One who holds the doctrine that the space between the bodies of the universe, or the molecules and atoms of matter., is a vacuum; -- opposed to plenist..

Intramolecular :: Intramolecular (a.) Between molecules; situated, or acting, between the molecules of bodies..

Pentoxide :: Pentoxide (n.) An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, P2O5..

Pore :: Pore (v.) A minute opening or passageway; an interstice between the constituent particles or molecules of a body; as, the pores of stones..

Hexeikosane :: Hexeikosane (n.) A hydrocarbon, C26H54, resembling paraffine; -- so called because each molecule has twenty-six atoms of carbon..

Molecule :: Molecule (n.) One of the very small invisible particles of which all matter is supposed to consist.

Amidogen :: Amidogen (n.) A compound radical, NH2, not yet obtained in a separate state, which may be regarded as ammonia from the molecule of which one of its hydrogen atoms has been removed; -- called also the amido group, and in composition represented by the form amido..

Polybasic :: Polybasic (a.) Capable of neutralizing, or of combining with, several molecules of a monacid base; having several hydrogen atoms capable of being replaced by basic radicals; -- said of certain acids; as, sulphuric acid is polybasic..

Polyacid :: Polyacid (a.) Capable of neutralizing, or of combining with, several molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; -- said of certain bases; as, calcium hydrate and glycerin are polyacid bases..

Hexatomic :: Hexatomic (a.) Having six atoms in the molecule.

Tetrabasic :: Tetrabasic (a.) Capable of neutralizing four molecules of a monacid base; having four hydrogen atoms capable of replacement by bases; quadribasic; -- said of certain acids; thus, normal silicic acid, Si(OH)4, is a tetrabasic acid..

Trichloride :: Trichloride (n.) A chloride having three atoms of chlorine in the molecule.

Tribasic :: Tribasic (a.) Capable of neutralizing three molecules of a monacid base, or their equivalent; having three hydrogen atoms capable of replacement by basic elements on radicals; -- said of certain acids; thus, citric acid is a tribasic acid..

Mercury :: Mercury (n.) A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, /..

Disulphide :: Disulphide (n.) A binary compound of sulphur containing two atoms of sulphur in each molecule; -- formerly called disulphuret. Cf. Bisulphide.

Self-repelling :: Self-repelling (a.) Made up of parts, as molecules or atoms, which mutually repel each other; as, gases are self-repelling..

Triacid :: Triacid (a.) Capable of neutralizing three molecules of a monobasic acid or the equivalent; having three hydrogen atoms which may be acid radicals; -- said of certain bases; thus, glycerin is a triacid base..

Molecule :: Molecule (n.) A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; as, a molecule of water consists of two atoms of hydrogen and one of oxygen. Cf. Atom..

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