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1. Biology Similarity in form, as in organisms of different ancestry.
2. Mathematics A one-to-one correspondence between the elements of two sets such that the result of an operation on elements of one set corresponds to the result of the analogous operation on their images in the other set.
3. A close similarity in the crystalline structure of two or more substances of similar chemical composition.

i′so·mor′phous adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌaɪ səˈmɔr fəs)

(of a chemical compound or mineral) capable of crystallizing in a form similar to that of another compound or mineral.
[1820–30; iso- + -morphous]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.isomorphous - having similar appearance but genetically different
biological science, biology - the science that studies living organisms
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The isomorphous substitution of [Si.sup.4+] by [Al.sup.3] + leads to a net negative surface charges that are compensated by an interlayer of exchangeable hydrated cations ([Ca.sup.2+], [Mg.sup.2+], [Cu.sup.2+], [Na.sup.+], and [H.sup.+]) [11].
Norrish K, Taylor RM (1961) The isomorphous replacement of iron by aluminium in soil goethites.
Isomorphous substitution of silicon in the erionite-like structure [AIPO.sub.4]-17 and acidity of SAPO-17.
This phenomenon was presumably due to the reason that Mg2+ was generally replaced by Co2+ through isomorphous substitution to form Co-O2 octahedron, which increased the distortion degree of the system, leading the hydrogen bonding and electrostatic force between the subject and object decrease gradually, and the absolute value of the binding energy decreased, so the system stability decreased.
One very beneficial consequence of such attention would be to distance Phelan's model from the position immanent in Chatman's scheme, which is to conceive of fictionality and literature as isomorphous with report.
The dispersion of clay particles has been attributed to the disposition of the clay mineral to isomorphous substitution which influences cation ion exchange and the charge potentials at the clay broken edges in relation to hydroxyl ion dissociation [14].
During the process of cement hydration, heavy metals eventually settled in the cement hydration products in the form of hydroxide or complex by reacting with cement by means of the physical cementing effect, chemical absorption, isomorphous replacement, and complex precipitation.
For the Cu-Ni alloy, only one peak is present for each reflection because the Cu-Ni alloy is an isomorphous binary alloy, which means the two metals are completely soluble in each other and have one type of crystal structure (fcc) with little to no strain [49].
Roy, "Isomorphous substitution and infrared spectra of the layer lattice silicates," American Mineralogist, vol.
Deoxidized form Pb was produced on the surface of Fe-oxyhydroxides and Mn-oxyhydroxides or lied in the structures of Fe-oxyhydroxides and Mn-oxyhydroxides by isomorphous replacement of Fe and Mn elements [34].
Isomorphous substitutions of [Si.sup.4+] for [Al.sup.3+] in the tetrahedral lattice and [Al.sup.3+] for [Mg.sup.2+] in the octahedral sheet cause an excess of negative charges within montmorillonite layers.
Bentonite is composed of two tetrahedrally coordinated sheets of silicon ions surrounding an octahedrally coordinated sheet of aluminum ions, the isomorphous substitution of [Al.sup.3+] for [Si.sup.4+] in the tetrahedral layer and [Mg.sup.2+] or [Fe.sup.3+] for [Al.sup.3+] in the octahedral layer results in a net negative surface charge on the layer, which makes it hold its physical and chemical properties, i.e., large specific surface area, cation exchange capacity, and adsorptive affinity for organic and inorganic ions [29, 30].