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hy•per



Pronunciation: (hī'pur), [key] Informal.

adj.
1. overexcited; overstimulated; keyed up.
2. seriously or obsessively concerned; fanatical; rabid: She's hyper about noise pollution.
3. hyperactive.

n.
a person who is hyper.

hy•per



Pronunciation: (hī'pur), [key]
n. Informal.
a person who promotes or publicizes events, people, etc., esp. one who uses flamboyant or questionable methods; promoter; publicist.

hyper-




a prefix appearing in loanwords from Greek, where it meant “over,” usually implying excess or exaggeration (hyperbole); on this model used, especially as opposed to hypo-, in the formation of compound words (hyperthyroid). Cf. super-.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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