What term refers to the three specific measurements used to describe an object's size?

The term "dimensions" specifically refers to the three measurements commonly used to describe an object's size: length, width, and height. These measurements provide a spatial representation of the object, critical in fields such as geometry, architecture, and various engineering disciplines. By defining an object’s dimensions, one can calculate its volume, surface area, and how it interacts with other objects in a space.

The other options do not encapsulate the concept of size in the same specific manner. "Coordinates" typically relate to a system for specifying positions in a space, rather than describing the size of an object. "Measurements" is broader and could refer to any quantifiable characteristic, not just size. "Properties" encompass a wider range of characteristics, including physical and chemical attributes, but do not focus specifically on the dimensions of an object.