A general concept formed by extracting common features from specific examples WordNet 3.0 & Open English WordNet

Abstraction in mathematics is the process of extracting the underlying structures, patterns or properties of a mathematical concept, removing any dependence on real world objects with which it might originally have been connected, and generalizing it so that it has wider applications or matching among other abstract descriptions of equivalent phenomena. Wikipedia

Sociological Abstraction refers to the varying levels at which theoretical concepts can be understood. Wikipedia

The term abstraction has a number of uses in the field of linguistics. Wikipedia

In software engineering and computer science, abstraction is the process of generalizing concrete details, such as attributes, away from the study of objects and systems to focus attention on details of greater importance. Wikipedia

A process of removing the dependence of a mathematical concept on real-world objects Wikipedia Disambiguation

A process of considering sociological concepts at a more theoretical level Wikipedia Disambiguation

Use of terms for concepts removed from the objects to which they were originally attached Wikipedia Disambiguation

A process of hiding details of implementation in programs and data Wikipedia Disambiguation

Technique for arranging complexity of computer systems Wikidata

use of terms for concepts removed from the objects to which they were originally attached Wikidata

Process of considering sociological concepts at a more theoretical level Wikidata

The act of comparing commonality between distinct objects and organizing using those similarities; the act of generalizing characteristics; the product of said generalization. Wiktionary