hyperventilate

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hyperventilate

(hī′pər-vĕn′tl-āt′)
v. hyperventi·lated, hyperventi·lating, hyperventi·lates
v.intr.
1. To breathe abnormally fast or deeply so as to effect hyperventilation.
2. To breathe in this manner as from excitement or anxiety.
v.tr.
To subject to hyperventilation.