The Collaborative International Dictionary
Hyperpnoea
Hyperpnoea \Hy`perp*n[oe]"a\, n. [NL., fr. Gr. "ype`r over + ?, ?, breath.] (Physiol.) Abnormal breathing, due to slightly deficient arterialization of the blood; -- in distinction from eupn[oe]a. See Eupn[oe]a, and Dispn[oe]a.
Wiktionary
hyperpnoea
n. (alternative spelling of hyperpnea English)