Wiktionary
abdominal breathing
n. (alternative namediaphragmatic breathing)
WordNet
abdominal breathing
n : breathing in which most of the respiratory effort is done by the abdominal muscles; "abdominal breathing is practiced by singers"
Usage examples of "abdominal breathing".
In-ibuki, Koi's soft abdominal breathing, changed to yo-ibuki, the hard, aggressive breathing of battle and stress.