hyperpnoea

from The Collaborative International Dictionary of English v.0.48

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}.
   [1913 Webster]