Oct or OCT may refer to:

Biology and medicine

Optical coherence tomography Optical coherence tomography (OCT) is a high-resolution imaging technique with most of its applications in medicine and biology. OCT uses coherent near-infrared light to obtain micrometer-level depth resolved images of biological tissue or oth ...

, 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, thoug ...

, a type of protein *

Optimal cutting temperature compound Optimal cutting temperature (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 From MS ...

, used in histology * Oncology clinical trial, a

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

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 ...

* Oxytocin challenge test, 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 Octal (base 8) is a numeral system with eight as the base. In the decimal system, each place is a power of ten. For example: : \mathbf_ = \mathbf \times 10^1 + \mathbf \times 10^0 In the octal system, each place is a power of eight. For ex ...

, abbreviated oct, the base-8 number system *

Octahedron In geometry, an octahedron (: octahedra or octahedrons) is any polyhedron with eight faces. One special case is the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. Many types of i ...

, 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 bipartit ...

, a concept in graph theory

Science and technology

Octave In music, an octave (: eighth) or perfect octave (sometimes called the diapason) is an interval between two notes, one having twice the frequency of vibration of the other. The octave relationship is a natural phenomenon that has been referr ...

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

Octans Octans is a faint constellation located in the deep southern celestial hemisphere, Southern Sky. Its name is Latin for the eighth part of a circle, but it is named after the octant (instrument), octant, a navigational instrument. Devised by kingd ...

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

NASA Institute for Advanced Concepts The NASA Innovative Advanced Concepts (NIAC), formerly 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 aerospa ...

, 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 d ...

, 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 ) means "wide" or "vast", and has been associated with the region since the creation of Guang Prefecture in AD 226. T ...

, (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 station (OCT Station), a metro station in Shenzhen *

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 ...

, a company * OCT Harbour, 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. Its length is 31 days. The eighth month in the old calendar of Romulus , October retained its name (from Latin and Greek ''ôctō'' meaning "eight") after Januar ...

Ontario College of Teachers The Ontario College of Teachers (OCT; ) is the regulatory college for the teaching profession in Ontario and is the largest self-regulatory body in Canada. It was established on 20 May 1997. The college's mandate is to license, govern and regulat ...

, a professional self-regulatory body ** Ontario Certified Teacher, a professional designation from the Ontario College of Teachers * Orangi Charitable Trust, a Pakistani microfinance organisation * Orion correlation theory, 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 t ...

, 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 Northwest Division (NBA), Northwest Division of the Western Confer ...

, an American basketball team *

Octuple scull An octuple sculling shell, often simply called an oct and abbreviated as an 8x rowing Rowing is the act of propelling a human-powered watercraft using the sweeping motions of oars to displace water and generate reactional propulsion. Rowing is functionally similar to paddling, but rowing requires oars to be mechanically a ...

Biology and medicine

Mathematics

Science and technology

Chinese places and companies

Other uses

See also