Relating to or having dimensions, which are measurable extents such as length, width, and height. It describes the spatial properties of objects or the number of coordinates needed to specify a point.
From Latin 'dimensio' meaning 'measuring,' from 'dimetiri' (to measure out), composed of 'di-' (apart) and 'metiri' (to measure). The concept expanded from simple physical measurement to mathematical and philosophical concepts of space and reality.
We live in what we call '3-dimensional' space, but mathematicians and physicists regularly work with objects in 4, 5, or even infinite dimensions! The word has evolved from describing simple length and width to helping us understand complex theories about the nature of reality itself.
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