screamer

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun One that screams, especially one that sings harshly or stridently.
• noun Slang A sensational headline.
• noun Slang One that evokes screams or laughter.
• noun Slang An exclamation point.
• noun Baseball A hard-hit line drive.
• noun Any of several large waterfowl of the family Anhimidae of South America, having a harsh resonant call.

from The Century Dictionary.

• noun Specifically, in golf, an unusually long shot.
• noun The exclamation-point (!).
• noun A heading in unusually bold type.
• noun One who or that which screams.
• noun In ornithology, specifically, one of several different birds.
• noun Something very great, excellent, or exciting; a thing that attracts the attention or draws forth screams of astonishment, delight, etc.; a whacker; a bouncer.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) Any one of three species of South American birds constituting the family Anhimidæ, and the suborder Palamedeæ. They have two spines on each wing, and the head is either crested or horned. They are easily tamed, and then serve as guardians for other poultry. The crested screamers, or chajas, belong to the genus Chauna. The horned screamer, or kamichi, is Palamedea cornuta.
• noun Slang Something so remarkable as to provoke a scream, as of joy.
• noun Printer's Slang An exclamation mark.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun One who screams; one who shouts; one who sings harshly.
• noun Any bird in the taxonomic family Anhimidae, endemic to South America, being large, bulky birds with a small downy head, long legs and large feet.
• noun Something exceptionally good.
• noun sports, cricket A difficult catch.
• noun sports, baseball A very hard hit.
• noun sports, Australian rules football A particularly high mark (clean catch of a kicked ball).
• noun sports, soccer a powerful shot.
• noun sports, surfing A very large wave.
• noun Internet slang A video that unexpectedly frightens the viewer by cutting to a loud scream and disturbing image.
• noun slang An effeminate gay man; a man who is obviously gay (homosexual).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a very hard hit ball
• noun a sensational newspaper headline
• noun someone who communicates vocally in a very loud voice
• noun gooselike aquatic bird of South America having a harsh trumpeting call