Definitions of culture:

• noun:   the raising of plants or animals

  Example: "The culture of oysters"

• noun:   (biology) the growing of microorganisms in a nutrient medium (such as gelatin or agar)

  Example: "The culture of cells in a Petri dish"

• noun:   the tastes in art and manners that are favored by a social group
• noun:   the attitudes and behavior that are characteristic of a particular social group or organization

  Example: "The developing drug culture"

• noun:   a particular society at a particular time and place
• noun:   (bacteriology) the product of cultivating micro-organisms in a nutrient medium
• noun:   all the knowledge and values shared by a society
• noun:   a highly developed state of perfection; having a flawless or impeccable quality