Brain wave and Motility

Brain wave noun - (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph.

Motility and brain wave are semantically related. In some cases you can use "Motility" instead a noun phrase "Brain wave".

Motility noun - Ability to move spontaneously and independently.

Brain wave and motility are semantically related. Sometimes you can use "Brain wave" instead a noun "Motility".