Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Not characterized by a dipole.
  • adjective Not ionizing when dissolved in water.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective physics Not containing a dipole.
  • adjective chemistry Not ionic; not dissociating into ions when dissolved in water etc.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective not ionic

Etymologies

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Examples

  • But nonpolar substances are effective solvents for one another; to put it in other words, nonpolar substances dissolve in other nonpolar substances.

    HOME COMFORTS CHERYL MENDELSON 2005

  • But nonpolar substances are effective solvents for one another; to put it in other words, nonpolar substances dissolve in other nonpolar substances.

    HOME COMFORTS CHERYL MENDELSON 2005

  • Because these mountains encompass the largest nonpolar ice mass in the world — some 46,298 glaciers covering 17 percent of the area's land mass — the region is known as the "third pole."

    The Most Endangered Glaciers 2010

  • Most laboratories store chemicals in dimethyl sulfoxide (DMSO), a popular solvent that can dissolve both polar (i.e., miscible with water) and nonpolar compounds.

    Toxicity testing- new dimensions 2009

  • For example, concentration gradient, molecular weight, lipid solubility, and polarity are important, with the smaller, nonpolar toxicants, in high concentrations, most likely to gain entrance.

    Distribution of toxicants in the body 2008

  • As a rule, substances made of polar molecules do not mix with substances made of nonpolar molecules.

    HOME COMFORTS CHERYL MENDELSON 2005

  • The nonpolar end is soluble in oil and grease and repelled by water: it is water-hating or hydrophobic.

    HOME COMFORTS CHERYL MENDELSON 2005

  • And generally speaking, the more polar a substance is, the more soluble it is in water, and the more nonpolar it is, the less soluble in water.

    HOME COMFORTS CHERYL MENDELSON 2005

  • Dirt, foods, cleaners, and other substances in the home can be divided into three chemical categories: ionic, polar, and nonpolar.

    HOME COMFORTS CHERYL MENDELSON 2005

  • The more nonpolar a substance is, the more nonpolar a solvent you need to dissolve it.

    HOME COMFORTS CHERYL MENDELSON 2005

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