Definitions for "Heterogeneity"
the fact or state of being dissimilar, as in composition, source, quantity, dimensions, and so on (Morris 1992).
composition with respect to unlike components
Also called "homogeneity" but having nothing to do with sexual preference, this term is used to designate a statistical test used to determine whether results from a set of independently performed studies on a particular question are similar enough to make statistical pooling valid. Are the apples sufficiently red and the oranges sufficiently green to be able to add them up and report the total number of "orpples"? As in other matters, statistical tests do not guarantee clinical relevance.
Keywords:  contrariety
The state of being heterogeneous; contrariety.
The situation where individuals who share the diagnosis of a particular disorder do not share all symptoms in common. A heterogeneous disorder is one where people with the disorder can present with a variety of different symptoms.
The state of being composed of units of different kinds. These units may be elements of pattern in space or intervals in time (Kolasa and Rollo 1991) Heterogeneity may be deterministic, random, or chaotic. Each of these types has corresponding expressions in space and time (see Picture)
A typical enterprise information system today includes many types of computer technology, from PCs to mainframes. These include a wide variety of different operating systems, application software and in-house developed applications. EAI solves the complex problem of making a heterogeneous infrastructure more coherent.
A fundamental characteristic of services referring to the fact that it is hard for a service organization to standardize the quality of its service performance.
the quality of being diverse and not comparable in kind
The quality or state of being heterogeneous, i.e., varying in space or time.
in tumors, a variety of cell types in varying degrees of differentiation and malignant potential.
Characteristic of a medium in which material properties vary from point to point.
Keywords:  introduction, see
See Introduction.
The variable appearance of a condition