what is the meaning of abstract
Use the adjective abstract for something that is not a material object or is general and not based on specific examples.
Abstract is from a Latin word meaning “pulled away, detached,” and the basic idea is of something detached from physical, or concrete, reality. It is frequently used of ideas, meaning that they don’t have a clear applicability to real life, and of art, meaning that it doesn’t pictorially represent reality. It is also used as a noun, especially in the phrase “in the abstract” (a joke has a person laying down a new sidewalk saying “I like little boys in the abstract, but not in the concrete”), and as a verb (accented on the second syllable), meaning “to remove.”
source: The enigma of human consciousness.New York Academy of Sciences.
So, in principle, with a brain connectivity map we would have a vast trove of objective data about the brain, and with our own introspection, we have a vast trove of subjective data about consciousness. One might think it would then be possible to abstract out the relevant kinds of principles that connect the objective to the subjective. I don’t think this would mean that we would bridge the mind/brain gap, but we would have boiled down this conundrum to the simplest possible principles.
Data abstraction is the reduction of a particular body of data to a simplified representation of the whole.
Abstraction, in general, is the process of taking away or removing characteristics from something in order to reduce it to a set of essential characteristics. As in abstract art, the representation is likely to be one potential abstraction of a number of possibilities. A database abstraction layer, for example, is one of a number of such possibilities.
Abstract poem, a term coined by Edith Sitwell to describe a poem in which the words are chosen for their aural quality rather than specifically for their sense or meaning. An example from “Popular Song” in Sitwell’s Façade (1923) follows:
The red retriever-haired satyr
Can whine and tease her and flatter,
But Lily O’Grady,
Silly and shady,
In the deep shade is a lazy lady;
Now Pompey’s dead, Homer’s read,
Heliogabalus lost his head,
And shade is on the brightest wing,
And dust forbids the bird to sing.