Abstract
Part of speech: noun
Definition: An abridgement or summary. Something that concentrates in itself the qualities of something else. An abstraction; an abstract term. An abstract work of art. That which is abstract. A powdered solid extract of a vegetable substance mixed with sugar of milk in such proportion that one part of the abstract represents two parts of the original substance.
Part of speech: adjective
Definition: Extracted. Considered apart from any application to a particular object; removed from; apart from; separate; abstracted. Absent in mind. Apart from practice or reality; not concrete; ideal; vague; theoretical; impersonal. Difficult to understand; abstruse. Free from representational qualities. General (as opposed to particular). Of a class in object-oriented programming, being a partial basis for subclasses rather than a complete template for objects.
Part of speech: verb
Definition: To separate; to remove; to take away. To withdraw. (euphemistic) To steal; to take away; to remove without permission. To create artistic abstractions of. To summarize; to abridge; to epitomize. To consider abstractly; to contemplate separately or by itself. To draw off (interest or attention). To extract by means of distillation. To withdraw oneself; to retire. To perform the process of abstraction. To produce an abstraction, usually by refactoring existing code. Generally used with "out".
Example sentence: The Vietnam War required us to emphasize the national interest rather than abstract principles. What President Nixon and I tried to do was unnatural. And that is why we didn't make it.
Theoretical
Part of speech: adjective
Definition: of or pertaining to theoretic studies (abstract, not empirical)
Example sentence: In specific circumstances the period of aging decline can set in earlier in a particular organ than in the organism as a whole which, in a certain general or theoretical sense, is left a cripple or invalid.