Pin tumbler lock. A common type of pin tumbler lock, of the euro cylinder type. The pin tumbler lock (or Yale lock, after lock manufacturers Yale) is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key.
noun. A person creating a diagram. A person creating a diagram. The definition of a diagram is a graph, chart, drawing or plan that explains something by showing how the parts relate to each other. An example of diagram is a chart showing how all the departments within an organization are related.
A plot diagram is a tool that is commonly used to organize a story into certain segments. Once the parts of the plot diagram are identified, it is easier to analyze the content. After reading the example of a plot diagram with the familiar story Cinderella we can better understand each part of the story.