Rapid eye movement sleep is characterized by a highly erratic breathing pattern and could not be simulated with current technology.
The vehicle he was driving was stopped because of an erratic driving pattern typical of someone under the influence.
I think I prefer to see him as one of those ageing mongrels one sees with creaky back legs, white whiskers and erratic bowel movements.
I tried for a few photographs to show my appreciation but there was a frisky breeze, too light to notice if it were not for the constant erratic movement of flowers and leaves.
I did not know then that he had an erratic sleep pattern.
About 50 minutes later, just as people outside realized there was a problem, the elevator stopped its erratic movements.
Steady breezes create regular rollers, while erratic squalls thrust up chaotic surges.
Global warming is also implicated in increasingly erratic arctic weather patterns.
Now scientists say the warming trend, if it continues, will increase the erratic weather patterns.
As the herd gained momentum the bells on the lead cows rang out louder and the erratic clanging became a regular tolling.