from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. That can be dissolved, especially easily dissolved: soluble fats.
  • adj. Possible to solve or explain: soluble mysteries.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Able to be dissolved.
  • adj. Able to be solved or explained.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Susceptible of being dissolved in a fluid; capable of solution.
  • adj. Susceptible of being solved; ; susceptible of being disentangled, unraveled, or explained.
  • adj. Relaxed; open or readily opened.

from The Century Dictionary and Cyclopedia

  • Capable of being dissolved in a fluid; capable of solution; dissolvable.
  • Figuratively, capable of being solved or resolved, as an algebraical equation; capable of being disentangled, cleared up, unfolded, or settled by explanation, as a doubt, question, etc.; solvable.
  • Relaxed; loose; open.

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

  • adj. susceptible of solution or of being solved or explained
  • adj. (of a substance) capable of being dissolved in some solvent (usually water)


Middle English, from Old French, from Late Latin solūbilis, from Latin solvere, to loosen; see leu- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle French soluble. (Wiktionary)



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