Definition: In mathematics, a pillion is a term used to refer to an animal that has been trained to carry someone else. This animal is often referred to as a "pilgrim" or "herd", and it is typically found in the wild where there are many other animals with which to work together. The term can also be applied to a group of people who are working together towards a common goal, such as building a bridge or constructing a structure. The term "pillion" comes
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