Hollow+space
131Vertebral column — The 33 vertebrae fit together to form a flexible, yet extraordinarily tough, column that serves to support the back through a full range of motion. It also protects the spinal cord, which runs from the brain through the hollow space in the middle …
132stereometry — 1. Measurement of a solid object or the cubic capacity of a vessel. 2. Determination of the specific gravity of a liquid. * * * ster·e·om·e·try (ster″e omґə tre) the measurement of the cubic or solid contents of a solid body, or of the …
