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[sol-yuh-buh l] /ˈsɒl yə bəl/
capable of being dissolved or liquefied:
a soluble powder.
capable of being solved or explained:
a soluble problem.
something soluble.
Origin of soluble
1350-1400; Middle English < Late Latin solūbilis, equivalent to Latin solū-, variant stem of solvere to loosen, dissolve + -bilis -ble
Related forms
solubleness, noun
solubly, adverb
intersoluble, adjective
nonsoluble, adjective
nonsolubleness, noun
nonsolubly, adverb
unsoluble, adjective
unsolubleness, noun
unsolubly, adverb
Can be confused
solvable, soluble. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for soluble
  • Others wanted to know if oat-bran and soluble fiber were the same.
  • The curious fact about medicines is that, in molecular terms, they are so alike: small and soluble in water.
  • Because salt is soluble in water, salt applied to such surfaces dissolves.
  • There are two forms of fiber: soluble and insoluble.
  • Over-reaction risks diverting scarce resources from real and soluble problems.
  • Robustas, hardy but a bit harsh, usually end up in soluble form.
  • soluble fiber attracts water and turns to gel during digestion.
  • But it could also be water soluble fractions, inhalation, and eating contaminated food.
  • Dietary fiber is found in plant foods, where it occurs in two forms: soluble and insoluble.
  • These chemicals are usually low water soluble to non-soluble and lipid soluble chemicals.
British Dictionary definitions for soluble


(of a substance) capable of being dissolved, esp easily dissolved in some solvent, usually water
capable of being solved or answered
Derived Forms
solubleness, noun
solubly, adverb
Word Origin
C14: from Late Latin solūbilis, from Latin solvere to dissolve
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for soluble

late 14c., "capable of being dissolved," from Old French soluble "expungable, eradicable" (13c.), from Late Latin solubilis "that may be loosened or dissolved," from stem of Latin solvere "loosen, dissolve" (see solve). Meaning "capable of being solved" is attested from 1705. Substances are soluble, not solvable; problems can be either.

Online Etymology Dictionary, © 2010 Douglas Harper
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soluble in Medicine

soluble sol·u·ble (sŏl'yə-bəl)
Capable of being dissolved, especially easily dissolved.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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soluble in Science
Capable of being dissolved. Salt, for example, is soluble in water.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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