Definition of atom

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Atom (n.) The smallest particle of matter that can enter into combination; one of the elementary constituents of a molecule.

Lern More About Atom

Hexatomic :: Hexatomic (a.) Having six atoms in the molecule.
Sclerotic :: Sclerotic (a.) Hard; firm; indurated; -- applied especially in anatomy to the firm outer coat of the eyeball, which is often cartilaginous and sometimes bony..
Prosector :: Prosector (n.) One who makes dissections for anatomical illustration; usually, the assistant of a professional anatomist..
Bihydroguret :: Bihydroguret (n.) A compound of two atoms of hydrogen with some other substance.
Trichloride :: Trichloride (n.) A chloride having three atoms of chlorine in the molecule.
Nebulize :: Nebulize (v. t.) To reduce (as a liquid) to a fine spray or vapor; to atomize.
Dilatometer :: Dilatometer (n.) An instrument for measuring the dilatation or expansion of a substance, especially of a fluid..
Monobasic :: Monobasic (a.) Capable of being neutralized by a univalent base or basic radical; having but one acid hydrogen atom to be replaced; -- said of acids; as, acetic, nitric, and hydrochloric acids are monobasic..
Radical :: Radical (n.) Specifically, a group of two or more atoms, not completely saturated, which are so linked that their union implies certain properties, and are conveniently regarded as playing the part of a single atom; a residue; -- called also a compound radical. Cf. Residue..
Sarcology :: Sarcology (n.) That part of anatomy which treats of the soft parts. It includes myology, angiology, neurology, and splanchnology..
Univalent :: Univalent (a.) Having a valence of one; capable of combining with, or of being substituted for, one atom of hydrogen; monovalent; -- said of certain atoms and radicals..
Disulphuric :: Disulphuric (a.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation.
Iridium :: Iridium (n.) A rare metallic element, of the same group as platinum, which it much resembles, being silver-white, but harder, and brittle, and indifferent to most corrosive agents. With the exception of osmium, it is the heaviest substance known, its specific gravity being 22.4. Symbol Ir. Atomic weight 192.5..
Uvulatome :: Uvulatome (n.) An instrument for removing the uvula.
Undecane :: Undecane (n.) A liquid hydrocarbon, C11H24, of the methane series, found in petroleum; -- so called from its containing eleven carbon atoms in the molecule..
Atom :: Atom (n.) A constituent particle of matter, or a molecule supposed to be made up of subordinate particles..
Adenography :: Adenography (n.) That part of anatomy which describes the glands.
Basi- :: Basi- () A combining form, especially in anatomical and botanical words, to indicate the base or position at or near a base; forming a base; as, basibranchials, the most ventral of the cartilages or bones of the branchial arches; basicranial, situated at the base of the cranium; basifacial, basitemporal, etc..
Tungsten :: Tungsten (n.) A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight, 183.6. Specific gravity, 18..
Anatomic :: Anatomic (a.) Alt. of Anatomica.
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