Oct or OCT may refer to:

Biology and medicine

Optical coherence tomography Optical coherence tomography (OCT) is an imaging technique that uses low-coherence light to capture micrometer-resolution, two- and three-dimensional images from within optical scattering media (e.g., biological tissue). It is used for medical ...

, an imaging method *

Organic cation transport protein An organic cation transport protein mediates the transport of organic cations across the cell membrane. These proteins are members of the solute carrier family, subfamily 22. This family of proteins can also transport zwitterions and anions, thou ...

, a type of protein *

Optimal cutting temperature compound Optimal cutting temperature compound (OCT compound) is used to embed tissue samples prior to frozen sectioning on a microtome-cryostat. This process is undertaken so as to mount slices (sections) of a sample onto slides for analysis. Components ...

, used in histology * Oncology clinical trial, a

clinical trial Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments (such as novel vaccines, drugs, dietar ...

cancer research Cancer research is research into cancer to identify causes and develop strategies for prevention, diagnosis, treatment, and cure. Cancer research ranges from epidemiology, molecular bioscience to the performance of clinical trials to evaluate and ...

Oxytocin challenge test A contraction stress test (CST) is performed near the end of pregnancy (34 weeks' gestation) to determine how well the fetus will cope with the contractions of childbirth. The aim is to induce contractions and monitor the fetus to check for heart ...

, a type of contraction stress test in late stage pregnancy * Obsessive compulsive tendencies, a criterion involved in the diagnosis of obsessive-compulsive disorder

Mathematics

Octal The octal numeral system, or oct for short, is the radix, base-8 number system, and uses the Numerical digit, digits 0 to 7. This is to say that 10octal represents eight and 100octal represents sixty-four. However, English, like most languages, ...

, abbreviated oct, the base-8 number system *

Octahedron In geometry, an octahedron (plural: octahedra, octahedrons) is a polyhedron with eight faces. The term is most commonly used to refer to the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at ea ...

, sometimes abbreviated oct, a regular polyhedron *

Odd cycle transversal In graph theory, an odd cycle transversal of an undirected graph is a set of vertices of the graph that has a nonempty intersection with every odd cycle in the graph. Removing the vertices of an odd cycle transversal from a graph leaves a biparti ...

, a concept in graph theory

Science and technology

Octave In music, an octave ( la, octavus: eighth) or perfect octave (sometimes called the diapason) is the interval between one musical pitch and another with double its frequency. The octave relationship is a natural phenomenon that has been refer ...

, symbol: oct., a unit of measurement in electronics *

Octans Octans () is a faint constellation located in the deep Southern Sky. Its name is Latin for the eighth part of a circle, but it is named after the octant, a navigational instrument. Devised by French astronomer Nicolas Louis de Lacaille in 1752, ...

, abbreviation: Oct, a constellation * Office of the Chief Technologist, a manager at the

NASA Institute for Advanced Concepts The NASA Institute for Advanced Concepts (NIAC) is a NASA program for development of far reaching, long term advanced concepts by "creating breakthroughs, radically better or entirely new aerospace concepts". The program operated under the name N ...

, an imaging method *

Olefin conversion technology Olefin Conversion Technology, also called the Phillips Triolefin Process, is the industrial process that interconverts propylene with ethylene and 2-butenes. The process is also called the ethylene to propylene (ETP) process. In ETP, ethylene is di ...

, a method in industrial chemistry * Office Customisation Tool, available in some versions of

Microsoft Office 2007 Microsoft Office 2007 (codenamed Office 12) is an office suite for Windows, developed and published by Microsoft. It was officially revealed on March 9, 2006 and was the 12th version of Microsoft Office. It was released to manufacturing on Novemb ...

Chinese places and companies

Overseas Chinese Town Overseas Chinese Town (OCT, ) is the colloquial name for a cluster of scenic spots in Nanshan District of Shenzhen, Guangdong Province, China, around the Window of the World Station, Overseas Chinese Town Station, Qiaocheng East Station and Qia ...

, (narrowly) a theme park or (broadly) an area in Shenzhen **

OCT Tower OCT Tower () is a skyscraper in Overseas Chinese Town, Shenzhen, China. It is 300 meters tall and has 60 floors. It is the 15th tallest building in Shenzhen. It functions as an office building. The building was first proposed in 2013 and constr ...

, a skyscraper in Overseas Chinese Town *

Overseas Chinese Town Limited Shenzhen Overseas Chinese Town Company Limited known as OCT Limited (formerly OCT Holding) is a publicly traded company based in Shenzhen, China. It is a subsidiary of state-owned Overseas Chinese Town Enterprises (or OCT Group). OCT Limited was i ...

, a company *

OCT Harbour OCT Harbour (), formerly known as OCT Bay and Happy Harbour, is a large retail and entertainment complex in Shenzhen, China Shenzhen (; ; ; ), also historically known as Sham Chun, is a major Sub-provincial division, sub-provincial city an ...

, a retail development in Shenzhen

Other uses

* Oct., an abbreviation for the month of

October October is the tenth month of the year in the Julian and Gregorian calendars and the sixth of seven months to have a length of 31 days. The eighth month in the old calendar of Romulus , October retained its name (from Latin and Greek ''ôct ...

Ontario Certified Teacher Ontario Certified Teacher (OCT) is the designation of professionals which is granted by the Council of the Ontario College of Teachers to qualified, registered members in good standing. OCT is the designation required of all teachers who teach in ...

, a professional designation *

Orangi Charitable Trust The 'Orangi Pilot Project'' ( ur, ; abbreviated OPP) collectively designates three Pakistani non-governmental organisations working together, having emerged from a socially innovative project carried out in 1980s in the squatter areas of Orangi, ...

, a Pakistani microfinance organisation *

Orion correlation theory The Orion correlation theory is a fringe theory in Egyptology explaining a possible purpose in the arrangement of the Giza pyramid complex. It posits that there is a correlation between the location of the three largest pyramids of the Giza pyra ...

, a fringe theory in Egyptology *

Overseas countries and territories The special territories of members of the European Economic Area (EEA) are the 32 special territories of EU member states and EFTA member states which, for historical, geographical, or political reasons, enjoy special status within or outside ...

, special territories in relation to the European Union *

Oxford Classical Texts Oxford Classical Texts (OCT), or Scriptorum Classicorum Bibliotheca Oxoniensis, is a series of books published by Oxford University Press. It contains texts of ancient Greek and Latin literature, such as Homer's ''Odyssey'' and Virgil's ''Aeneid'', ...

, a book series *

Oklahoma City Thunder The Oklahoma City Thunder are an American professional basketball team based in Oklahoma City. The Thunder compete in the National Basketball Association (NBA) as a member of the league's Western Conference Northwest Division. The team plays i ...

, an American basketball team

Biology and medicine

Mathematics

Science and technology

Chinese places and companies

Other uses

See also