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Hexabasic :: Hexabasic (a.) Having six hydrogen atoms or six radicals capable of being replaced or saturated by bases; -- said of acids; as, mellitic acid is hexabasic..

Smither :: Smither (n.) Fragments; atoms; finders.

Trioxide :: Trioxide (n.) An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; -- formerly called tritoxide..

Unsymmetrical :: Unsymmetrical (a.) Being without symmetry of chemical structure or relation; as, an unsymmetrical carbon atom..

Polybromide :: Polybromide (n.) A bromide containing more than one atom of bromine in the molecule.

Pneumatometer :: Pneumatometer (n.) An instrument for measuring the amount of force exerted by the lungs in respiration.

Bi- :: Bi- () In the composition of chemical names bi- denotes two atoms, parts, or equivalents of that constituent to the name of which it is prefixed, to one of the other component, or that such constituent is present in double the ordinary proportion; as, bichromate, bisulphide. Be- and di- are often used interchangeably..

Tetracid :: Tetracid (a.) Capable of neutralizing four molecules of a monobasic acid; having four hydrogen atoms capable of replacement ba acids or acid atoms; -- said of certain bases; thus, erythrine, C4H6(OH)4, is a tetracid alcohol..

Monosulphide :: Monosulphide (n.) A sulphide containing one atom of sulphur, and analogous to a monoxide; -- contrasted with a polysulphide; as, galena is a monosulphide..

Monad :: Monad (n.) An atom or radical whose valence is one, or which can combine with, be replaced by, or exchanged for, one atom of hydrogen..

Tetrol :: Tetrol (n.) A hypothetical hydrocarbon, C4H4, analogous to benzene; -- so called from the four carbon atoms in the molecule..

Tantalum :: Tantalum (n.) A rare nonmetallic element found in certain minerals, as tantalite, samarskite, and fergusonite, and isolated as a dark powder which becomes steel-gray by burnishing. Symbol Ta. Atomic weight 182.0. Formerly called also tantalium..

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..

Hecatomb :: Hecatomb (n.) A sacrifice of a hundred oxen or cattle at the same time; hence, the sacrifice or slaughter of any large number of victims..

Carbon :: Carbon (n.) An elementary substance, not metallic in its nature, which is present in all organic compounds. Atomic weight 11.97. Symbol C. it is combustible, and forms the base of lampblack and charcoal, and enters largely into mineral coals. In its pure crystallized state it constitutes the diamond, the hardest of known substances, occuring in monometric crystals like the octahedron, etc. Another modification is graphite, or blacklead, and in this it is soft, and occurs in hexagonal prisms or t

Hyo- :: Hyo- () A prexif used in anatomy, and generally denoting connection with the hyoid bone or arch; as, hyoglossal, hyomandibular, hyomental, etc..

Lanthanum :: Lanthanum (n.) A rare element of the group of the earth metals, allied to aluminium. It occurs in certain rare minerals, as cerite, gadolinite, orthite, etc., and was so named from the difficulty of separating it from cerium, didymium, and other rare elements with which it is usually associated. Atomic weight 138.5. Symbol La..

Anatomy :: Anatomy (n.) The act of dividing anything, corporeal or intellectual, for the purpose of examining its parts; analysis; as, the anatomy of a discourse..

Polyatomic :: Polyatomic (a.) Having more than one atom in the molecule; consisting of several atoms.

Diatom :: Diatom (n.) A particle or atom endowed with the vital principle.

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