from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. By use of the diaphragm; in a diaphragmatic way
- adv. by expanding/contracting the lungs by lowering/raising the diaphragm, instead of by expanding the chest
from The Century Dictionary and Cyclopedia
- By means of the diaphragm: as, to breathe diaphragmatically.
A correct position of the body is very important, for if you have the proper erect posture, and have no constricting clothing about the waist and abdominal region, you will almost instinctively be inclined to breathe diaphragmatically, or abdominally, as we call it.
Now that you've heard, and felt, the difference, I would ask you to make a practice of checking in with yourself to see if you're speaking diaphragmatically during the day.