1B may refer to:
Science and technology
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Alpha-1B adrenergic receptor
The alpha-1B adrenergic receptor (α1B-adrenoreceptor), also known as ADRA1B, is an alpha-1 adrenergic receptor, and also denotes the human gene encoding it. The crystal structure of the α1B-adrenergic receptor has been determined in complex with ...
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Arginine vasopressin receptor 1B
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Interferon beta-1b
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Melatonin receptor 1B
* The
ASCII hexadecimal code for the escape character
* 1b as
one billion
Sport
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First baseman
A first baseman, abbreviated 1B, is the player on a baseball or softball team who fields the area nearest first base, the first of four bases a baserunner must touch in succession to score a run. The first baseman is responsible for the majori ...
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Single (baseball)
In baseball, a single is the most common type of base hit, accomplished through the act of a batter safely reaching first base by hitting a fair ball (thus becoming a runner) and getting to first base before a fielder puts him out. As an e ...
Transport
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Axle arrangement on steam locomotives corresponding to a 2-4-0 wheel arrangement
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GCR Class 1B, a class of British 2-6-4T steam locomotive
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National Highway 1B (India, old numbering)
See also
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B1 (disambiguation)
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Billion
Billion is a word for a large number, and it has two distinct definitions:
* 1,000,000,000, i.e. one thousand million, or (ten to the ninth power), as defined on the short scale. This is now the most common sense of the word in all varieties of ...
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