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molecule    音標拼音: [m'ɑləkj,ul]
n. 分子,些微

分子,些微

molecule
n 1: (physics and chemistry) the simplest structural unit of an
element or compound
2: (nontechnical usage) a tiny piece of anything [synonym: {atom},
{molecule}, {particle}, {corpuscle}, {mote}, {speck}]

Molecule \Mol"e*cule\, n. [Dim. fr. L. moles a mass: cf. F.
mol['e]cule. See 3d {Mole}.]
1. One of the very small invisible particles of which all
ordinary matter is supposed to consist.
[1913 Webster]

2. (Physics) The smallest part of any substance which
possesses the characteristic properties and qualities of
that substance, and which can exist alone in a free state.
[1913 Webster]

3. (Chem.) 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}.
[1913 Webster]

138 Moby Thesaurus words for "molecule":
Kekule formula, ace, acid, acidity, agent, air, alkali, alkalinity,
alloisomer, anion, antacid, atom, atomic cluster, atomic particles,
base, benzene ring, biochemical, bit, branched chain, brute matter,
building block, cation, chain, chemical, chemical element,
chromoisomer, closed chain, component, compound, compound radical,
constituent, copolymer, cycle, dab, dimer, dole, dot, dram,
dribble, driblet, dwarf, earth, electron, element,
elementary particle, elementary unit, farthing, fire, fleck,
flyspeck, fragment, fundamental particle, gobbet, grain, granule,
groat, hair, handful, heavy chemicals, heterocycle, high polymer,
homocycle, homopolymer, hydracid, hyle, hypostasis,
inorganic chemical, ion, iota, isomer, jot, lattice, little,
little bit, lota, macromolecule, material, material world,
materiality, matter, meson, metamer, minim, minimum, minutiae,
mite, modicum, monad, monomer, mote, natural world, nature,
neutralizer, nonacid, nuclear particle, nutshell, organic chemical,
ounce, oxyacid, particle, pebble, physical world, pinch, pittance,
plenum, point, polymer, proton, pseudoisomer, quark, radical, ray,
reagent, ring, scruple, side chain, simple radical, smidgen,
smitch, space-lattice, speck, spoonful, spot, straight chain,
stuff, substance, substratum, sulfacid, the four elements,
thimbleful, tiny bit, tittle, trifling amount, trimer, trivia,
unit of being, water, whit

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  • Molecule - Wikipedia
    A molecule may be homonuclear, that is, it consists of atoms of one chemical element, e g two atoms in the oxygen molecule (O 2); or it may be heteronuclear, a chemical compound composed of more than one element, e g water (two hydrogen atoms and one oxygen atom; H 2 O)
  • Molecule | Definition, Examples, Structures, Facts | Britannica
    Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance Learn more about the properties and structures of molecules in this article
  • What Is a Molecule? Definition and Examples
    A molecule is defined as an electrically neutral group of two or more atoms connected by chemical bonds Here are examples of molecules and a look at the difference between a molecules, compounds, and ions
  • Molecule: Definition, Examples, Facts Diagram
    What is a molecule in chemistry Learn how it is formed Also, learn about molecular compounds and formulas with examples, facts, and diagrams
  • MOLECULE Definition Meaning - Merriam-Webster
    The meaning of MOLECULE is the smallest particle of a substance that retains all the properties of the substance and is composed of one or more atoms How to use molecule in a sentence
  • Definition and Examples of a Molecule - ThoughtCo
    Molecule Definition A molecule is two or more atoms that form chemical bonds with each other, representing the smallest unit of a chemical compound with all the physical and chemical properties of the compound It doesn't matter if the atoms are the same or are different from each other
  • Molecules - Definition, Types, Characteristics, Shapes
    What Is Molecule? A molecule is a group of two or more atoms bonded together, forming the smallest unit of a chemical compound that retains its chemical properties Atoms in a molecule are held together by chemical bonds, such as covalent bonds, where they share electrons
  • What is a Molecule? - Chemistry Overview (Video)
    When atoms share electrons, they form covalent bonds; the resulting collection of bonded atoms is what we call a molecule Just like an atom is the smallest unit of an element, a molecule is the smallest unit of a covalent compound
  • What Is a Molecule? | Office for Science and Society - McGill University
    Molecules are the fundamental components of matter They are made up of atoms, which in turn are composed of even smaller particles called protons, neutrons, and electrons
  • What Is a Molecule? A Breakdown of Its Concept, Structure, and Types
    A molecule is best described as a stable aggregation of atoms bonded together, often electrically neutral, representing the smallest unit of a substance that retains its chemical properties





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