Echo

Echo most commonly refers to Echo (phenomenon), the reflection of a sound.

It may also refer to:

Science and technology

• Echo satellite, one of the first communications satellites
• EChO, a proposed European Space Agency mission to study exoplanet atmospheres.
• Echo sounding, a way to measure water depth
• Light echo, a visual phenomenon
• Signal reflection, a concept in telecommunications
• ECHO Clearinghouse, NASA's registry of Earth Science data and services, an early SOA example

An Echo is a multiple reflection of sound which can happen in a covered area

Computing

• Echo (command), a Unix, DOS and Microsoft Windows command to display a line of text
• Echo (computing), a feature of telecommunications protocols
• Echo (framework), a web framework for Java programming
• The Echo Protocol, an Internet protocol largely superseded by ICMP
• A command in programming languages to output one or more strings
• A discussion forum on FidoNet

Medicine

• ECHO (echocardiography), an imaging technique used to assess heart function in medicine
• Echovirus, short for "enteric cytopathic human orphan" virus
• echo-, involuntary repetition or imitation, as in echolalia and echopraxia

Fiction and mythology

• Echo (mythology), a nymph
• Echo (Marvel Comics), a superheroine in the Marvel universe
• Echo (DC Comics), a name that has been used by a number of different characters in works published by DC Comics.
  • Query and Echo, the team of henchmen for the Riddler that featured the fifth character in DC Comics named "Echo"
• Echo (Dollhouse), the protagonist of science-fiction TV series Dollhouse
• Echo (comic book), a comic book title by Terry Moore, launched in 2008
• Echo (1997 film), a 1997 TV film
• Echo (2003 film), a 2003 short film directed by Tom Oesch
• Echo (2007 film), a 2007 Danish film
• Echo (novel), a 2000 fantasy novel by Francesca Lia Block
• Echo: Secrets of the Lost Cavern, a video game
• A race of aliens from the UK TV series Invasion: Earth (TV series)
• Echo Nightray, a female character in the anime and manga Pandora Hearts

Music

• Echo (music award)
• The Echo (venue)
• The Echo Label, a record label
• Echo Orbiter, an indie band
• Echo & the Bunnymen, a band
• Echo (producer), a reggaeton producer

Albums

• Echo (Dave Burrell album)
• Echo (Tom Petty and the Heartbreakers album)
• Echo (Leona Lewis album)

Songs

• "Echo" (Gorilla Zoe song)
• "Echo" (Trapt song)
• "Echo" (Ciara song)
• "Echo" (R. Kelly song)
• "Echo" (Girls Can't Catch song)
• "Echo", a song by Cyndi Lauper from the album Bring Ya to the Brink
• "Echo" a song by Bad Meets Evil (Eminem & Royce Da 5'9), from the deluxe edition of Hell: The Sequel album.
• "Echo" by Girls' Generation

Newspapers

• The Echo (Irish Newspaper), based in Dublin, Ireland
• Byron Shire Echo, based in Byron Bay, Australia
• The Irish Echo, based in New York City
• Liverpool Echo, based in Liverpool, England
• The Northern Echo, based in Darlington, England
• South Wales Echo, based in Cardiff, Wales
• Echo Weekly, based in Kitchener, Ontario
• Bournemouth Daily Echo, based in Bournemouth, England
• Southern Daily Echo, based in Hampshire, England

Organizations

• ECHO (European Commission), a department of the European Union
• Extended Care Health Option, a health coverage program
• Echo (radio station), a community radio station in Farnborough, Hampshire
• Echo of Moscow, a Russian radio station
• ECHO Lake Aquarium and Science Center, an interactive museum and research center in Burlington, Vermont

Places

United States

• Echo, Alabama
• Echo, Inyo County, California
• Echo, Mendocino County, California
• Echo, Minnesota
• Echo, Oregon
• Echo, Utah
• Echo Lake, California, a community
• Echo Lake (California), a lake
• Echo Lake, Washington, a community
• Echo Mountain Park, a ski area in Colorado
• Echo Summit, a mountain pass in California
• Echo Township, Michigan
• Echo Township, Yellow Medicine County, Minnesota

Spain

• Echo, Aragón, Spain, a village

Vessels

• Echo (steam tug), a steam tug on Puget Sound
• Echo class submarine, a Soviet era navy submarine
• Echo class survey ship (disambiguation), two classes of Royal Navy survey ship
• USS Echo (IX-95), a US Army supply ship from New Zealand (WW II)

Other uses

• Echo Incorporated, a manufacturer of chainsaws, trimmers and other small-engine machines.
• Echo Johnson, a model and actress
• 60 Echo, an asteroid
• Toyota Echo, a car
• Echo smartpen, a ballpoint pen, computer, and audio recorder manufactured by Livescribe
• A letter in the NATO phonetic alphabet
• The title of a poem by Christina Rossetti
• An old-fashioned South Australian term for "bottle".
• Echo, a famous matriarch elephant in the Amboseli National Park
• Echo (genus), a genus of damselfly
• Kyocera Echo, a dual screen smart phone

See also

• ECHO
• Echoes
• Eckō
• EKCO

In Wikipedia, Echo may refer to WikiProject Echo.