Diatomaceous earth is not poisonous; it does not have to be eaten in order to be effective. Diatomaceous earth causes insects to dry out and die by absorbing the oils and fats from the cuticle of the insect's exoskeleton.
Pace, plod, trudge refer to a steady and monotonous kind of walking. Pace suggests steady, measured steps as of one completely lost in thought or impelled by some distraction: to pace up and down. Plod implies a slow, heavy, laborious, weary walk: The mailman plods his weary way.
Constant Pacing Could Be Sign Of Pain Or Anxiety. Dear Lyn: I take care of my older brother full-time. He's 80 and was diagnosed with progressive dementia a few years ago. Lately he can't seem to sit still, and he's constantly pacing or fidgeting. He doesn't wander outside, but I did get him a Safe Return bracelet. My problem is that his pacing is really getting to me. I took him to the doctor to see if something was physically wrong with him that would make him nervous or upset.