Deffinitions of culture

When you gather different words such as religion, communication, belives, special days, language, and more, you are basically talking about one magnifincant word called CULTURE.

But I wonder what the real definition of culture is?
I started searchin for different definitions and this is what I got:

• According to Alfred Kroeber and Clyde Kluckhohn, culture is "A Critical Review of Concepts and Definitions"

http://en.wikipedia.org/wiki/culture

• The system of shared beliefs, values, customs, behaviours, and artifacts that the members of society use to cope with their world and with one another, and that are transmitted from generation to generation through learning.

http://www.umanitoba.ca/faculties/arts/anthropology/courses/122/module1/culture.html

• Is a shared, learned, symbolic system of values, beliefs and attitudes that shapes and influences perception and behavior -- an abstract "mental blueprint" or "mental code.

http://www2.eou.edu/~kdahl/cultdef.html