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1. A biological specimen or other element that is a duplicate of the holotype.
2. Any of several classes or subclasses of immunoglobulins, such as immunoglobulins A and G, that are distinguished by differences in the amino acid sequence of the constant regions of their heavy chains. All isotypes are usually found in every individual of a species.
i′so·typ′ic (-tĭp′ĭk) adj.
i′so·ty′py (-tī′pē) n.
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.
(Geological Science) mineralogy having a similar or identical crystal structure, and, optionally, also having analogous chemical formulae
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