Y (disambiguation)
Encyclopedia
Y
is the twenty-fifth letter of the Latin alphabet.
Y or y may also refer to:
Y
Y is the twenty-fifth letter in the basic modern Latin alphabet and represents either a vowel or a consonant in English.-Name:In Latin, Y was named Y Graeca "Greek Y". This was pronounced as I Graeca "Greek I", since Latin speakers had trouble pronouncing , which was not a native sound...
is the twenty-fifth letter of the Latin alphabet.
Y or y may also refer to:
Science
- YottaYottaYotta is the largest unit prefix in the International System of Units denoting a factor of 1024 or . It has the unit symbol Y.The prefix name is derived from the Greek , meaning eight, because it is equal to 10008...
(Y), the SI prefix for 1024 - YoctoYoctoYocto- is a prefix in the metric system denoting a factor of 10−24 or .Adopted in 1991 by the General Conference on Weights and Measures, it comes from the Greek οκτώ, meaning "eight", because it is equal to 1000−8. , yocto is the smallest confirmed SI prefix.It can be used to state a subatomic...
(y), the SI prefix for 10-24 - YttriumYttriumYttrium is a chemical element with symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and it has often been classified as a "rare earth element". Yttrium is almost always found combined with the lanthanides in rare earth minerals and is...
, chemical symbol Y - YearYearA year is the orbital period of the Earth moving around the Sun. For an observer on Earth, this corresponds to the period it takes the Sun to complete one course throughout the zodiac along the ecliptic....
(y), a non-SI abbreviation for this unit of time - YellowYellowYellow is the color evoked by light that stimulates both the L and M cone cells of the retina about equally, with no significant stimulation of the S cone cells. Light with a wavelength of 570–590 nm is yellow, as is light with a suitable mixture of red and green...
, in the CMYK color model - Y boson
- Y chromosomeY chromosomeThe Y chromosome is one of the two sex-determining chromosomes in most mammals, including humans. In mammals, it contains the gene SRY, which triggers testis development if present. The human Y chromosome is composed of about 60 million base pairs...
- Haplogroup Y (mtDNA)Haplogroup Y (mtDNA)In human mitochondrial genetics, Haplogroup Y is a human mitochondrial DNA haplogroup.-Distribution:Haplogroup Y has been found in approximately 66% of Nivkhs and approximately 20% of Ainus. However, this haplogroup also has been found in approximately 2% of Koreans, and in South Siberian and...
- Luminance (video), in many video color models, such as YIQ and YUV
- AdmittanceAdmittanceIn electrical engineering, the admittance is a measure of how easily a circuit or device will allow a current to flow. It is defined as the inverse of the impedance . The SI unit of admittance is the siemens...
, the inverse of electrical impedance, Z - TyrosineTyrosineTyrosine or 4-hydroxyphenylalanine, is one of the 22 amino acids that are used by cells to synthesize proteins. Its codons are UAC and UAU. It is a non-essential amino acid with a polar side group...
, abbreviated Y or Tyr - Y, a hypothetical stellar class of ultra-cool dwarf stars
Mathematics
- Dependent variable
- An axis in the Cartesian coordinate systemCartesian coordinate systemA Cartesian coordinate system specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances from the point to two fixed perpendicular directed lines, measured in the same unit of length...
- Y combinatorY CombinatorY Combinator is an American seed-stage startup funding firm, started in March 2005. Y Combinator provides seed money, advice, and connections at two 3-month programs per year...
, a fixed-point combinator in combinatory logic - The Bessel functionBessel functionIn mathematics, Bessel functions, first defined by the mathematician Daniel Bernoulli and generalized by Friedrich Bessel, are canonical solutions y of Bessel's differential equation:...
Y
Other uses
- Brigham Young UniversityBrigham Young UniversityBrigham Young University is a private university located in Provo, Utah. It is owned and operated by The Church of Jesus Christ of Latter-day Saints , and is the United States' largest religious university and third-largest private university.Approximately 98% of the university's 34,000 students...
, commonly known throughout the Mormon Corridor as "the Y" (as its rival, the University of Utah, is known as "the U") - YukonYukonYukon is the westernmost and smallest of Canada's three federal territories. It was named after the Yukon River. The word Yukon means "Great River" in Gwich’in....
, post code Y - Generation YGeneration YGeneration Y, also known as the Millennial Generation , Generation Next, Net Generation, or Echo Boomers, describes the demographic cohort following Generation X. There are no precise dates for when the Millennial generation starts and ends, and commentators have used birth dates ranging somewhere...
- Basque YBasque YBasque Y is the name given to the Spanish high-speed rail network being built between the three cities of the Basque Country autonomous community; Bilbao, Vitoria-Gasteiz and Donostia-San Sebastián, Spain.-Characteristics:...
, a Spanish high-speed rail network so called for its Y shape - YMCAYMCAThe Young Men's Christian Association is a worldwide organization of more than 45 million members from 125 national federations affiliated through the World Alliance of YMCAs...
, aka "the Y" - YWCAYWCAThe YWCA USA is the United States branch of a women's membership movement that strives to create opportunities for women's growth, leadership and power in order to attain a common vision—to eliminate racism and empower women. The YWCA is a non-profit organization, the first of which was founded in...
, aka "the Y" - YM-YWHA, aka "the Y"
- Y Window SystemY Window SystemThe Y Window System is a windowing system, consisting of a window server and a client library for writing applications. It was written by Mark Thomas as the subject of his Master's thesis at Imperial College, London. It is intended to be a successor to the X Window System, hence the name...
, a proposed development of the X Window System - Alleghany Corporation, NYSE ticker symbol Y
- IncomeIncomeIncome is the consumption and savings opportunity gained by an entity within a specified time frame, which is generally expressed in monetary terms. However, for households and individuals, "income is the sum of all the wages, salaries, profits, interests payments, rents and other forms of earnings...
, Y - Economy classEconomy class__FORCETOC__Economy class, also called coach class , steerage, or standard class, is the lowest class of seating in air travel, rail travel, and sometimes ferry or maritime travel....
, Y - Y-stationsY-stationsY-stations were British Signals Intelligence collection sites initially established during World War I and later used during World War II. These sites were operated by a range of agencies including the Army, Navy and RAF plus the Foreign Office , General Post Office and Marconi Company receiving...
, World War 2 listening stations - "Y", a poem by Patti Smith from her 1994 book Early WorkEarly Work- 1970–1972 :# "Prayer"# "Ballad of a Bad Boy"# "Oath"# "Anna of the Harbor"# "The Sheep Lady from Algiers"# "Work Song"# "Notebook"# "Conversation with the Kid"# "The Ballad of Hagen Walker"# "Seventh Heaven"# "Amelia Earhart"# "k.o.d.a.k."# "Dog Dream"...
may refer to a typographical symbol in Japanese resale price maintenance. - Y (game)Y (game)]Y is an abstract strategy game which was first described by Claude Shannon in the early 1950s. Y was independently invented in 1953 by Craige Schensted and Charles Titus...
, a board game played on a triangular board - Y (album)Y (album)Y is the debut album by English band The Pop Group, released in 1979.-Critical Reception:Internet rock music historian Piero Scaruffi ranks Y as the 23rd greatest rock album of all time...
, an album by The Pop Group - Y (New York City Subway service), an unused New York City Subway service label
- Y: The Last ManY: The Last ManY: The Last Man is a comic book series by Brian K. Vaughan and Pia Guerra published by Vertigo beginning in 2002. The series is about the only man to survive the apparent simultaneous death of every male mammal on Earth...
, a DC comics series by Brian K. Vaughan - 010110010101100101011001 is the seventh studio album by Arjen Anthony Lucassen's long-running Ayreon project. "01011001" is the binary representation of the ASCII value of the letter Y...
(binary number for 'Y' in ASCII), an album by Dutch progressive metal project Ayreon - Y.Y.Y. is the second studio album released by Spanish singer-songwriter Bebe. Released on June 29, 2009, the album received positive critical reviews, and entered the Spanish Album Chart at number one. It was released after Bebe's four-year hiatus from the music business, following the success of her...
, an album by Spanish singer Bebe - y, an IamamiwhoamiIamamiwhoamiiamamiwhoami is an electronic music and multimedia project headlined by Swedish singer-songwriter Jonna Lee. Videos released from the project's YouTube channel have spread virally. The first clip was uploaded on December 4, 2009, and was forwarded to a number of music journalists and blogs. Another...
song - Y (EP)Y (EP)Y is first EP by South Korean boy band MBLAQ, and was released through J.Tune Entertainment South Korea on May 17, 2010. The first and only single Y was released to Korean music portals on the same date as the EP release...
, a single album by MBLAQ