application or intradermal injection of a substance to the skin to test the body's reaction to it. Such a test detects an animal's sensitivity to such allergens as dust and pollen, or to preparations of microorganisms believed to be the cause of a disorder.
A direct relationship graph is a graph where one variable either increases or decreases along with the other. The general equation for a direct relationship graph is y = mx + b, where y denotes the...
noun. There is a relationship between a husband and wife. There is a relationship between a husband and wife. The definition of a relationship is a connection between two people or things. 1  An example of relationship is a husband and his wife.2  An example of relationship is a brother and his sister. 3  An example of relationship is two businesses working together. An example of relationship is a husband and his wife. 2  An example of relationship is a brother and his sister. 3  An example of relationship is two businesses working together.