Ein or EIN may refer to:
Science and technology
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Ein function
In mathematics, the exponential integral Ei is a special function on the complex plane.
It is defined as one particular definite integral of the ratio between an exponential function and its argument of a function, argument.
Definitions
For real ...
, in mathematics
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Endometrial intraepithelial neoplasia, a lesion of the uterine lining
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Equivalent input noise, of a microphone
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European Informatics Network
In telecommunications, packet switching is a method of grouping data into short messages in fixed format, i.e. '' packets,'' that are transmitted over a digital network. Packets consist of a header and a payload. Data in the header is used b ...
, a 1970s computer network
Fictional characters
* Ein, a
character in the anime series ''Cowboy Bebop''
* Ein, a
character in the video game series ''Dead or Alive''
* Ein, the protagonist of the Game Boy Advance game ''
Riviera: The Promised Land''
Other uses
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Aer Lingus
Aer Lingus ( ; an anglicisation of the Irish language, Irish , meaning "air fleet") is an Irish airline company which is the flag carrier of Republic of Ireland, Ireland. Founded by the Irish Government, it was privatised between 2006 and 201 ...
(ICAO code), the flag carrier airline of Ireland
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Eindhoven Airport (IATA code), in the Netherlands
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Employer Identification Number, assigned by the US Internal Revenue Service
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EPODE International Network, a Belgian obesity organization
{{disambiguation, surname