The Collaborative International Dictionary
Diaphragmatic
Diaphragmatic \Di`a*phrag*mat"ic\, a. [Cf. F. diaphragmatique.] Pertaining to a diaphragm; as, diaphragmatic respiration; the diaphragmatic arteries and nerves.
Wiktionary
diaphragmatic
a. Of, pertaining to, or using a diaphragm
WordNet
Wikipedia
Usage examples of "diaphragmatic".
I saw the deep, slow, diaphragmatic breathing of heavy sleep, lips apart, edge of white teeth showing.
When the merriment had subsided, Si-s-s-s(click) tried between jaw snaps and diaphragmatic throbbing to explain what the joke had been.