GCR (or GCRS) may refer to:

Science

* Galactic

cosmic ray Cosmic rays are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light. They originate from the Sun, from outside of the Solar System in our own ...

, a cosmic ray from outside the Solar System *

Geocentric Celestial Reference System The barycentric celestial reference system (BCRS) is a coordinate system used in astrometry to specify the location and motions of astronomical objects. It was created in 2000 by the International Astronomical Union (IAU) to be the global standard ...

, a coordinate system for near-Earth objects like satellites *

Geological Conservation Review The Geological Conservation Review (GCR) is produced by the UK's Joint Nature Conservation Committee and is designed to identify those sites of national and international importance needed to show all the key scientific elements of the geological a ...

, a procedure of the British Joint Nature Conservation Committee *

Global catastrophic risk A global catastrophic risk or a doomsday scenario is a hypothetical future event that could damage human well-being on a global scale, even endangering or destroying modern civilization. An event that could cause human extinction or permanen ...

, a potential catastrophe that would affect the whole world * ''

Global Competitiveness Report The ''Global Competitiveness Report'' (GCR) is a yearly report published by the World Economic Forum. Since 2004, the ''Global Competitiveness Report'' ranks countries based on the Global Competitiveness Index, developed by Xavier Sala-i-Martin an ...

'', a yearly report published by the World Economic Forum *

Glucocorticoid receptor The glucocorticoid receptor (GR, or GCR) also known as NR3C1 (nuclear receptor subfamily 3, group C, member 1) is the receptor to which cortisol and other glucocorticoids bind. The GR is expressed in almost every cell in the body and regulates ...

, a cell protein which responds to glucocorticoid compounds

Technology

Gas-cooled reactor A gas-cooled reactor (GCR) is a nuclear reactor that uses graphite as a neutron moderator and a gas (carbon dioxide or helium in extant designs) as coolant. Although there are many other types of reactor cooled by gas, the terms ''GCR'' and to a l ...

, a type of nuclear reactor *

Ghost-canceling reference Ghost-canceling reference (GCR) is a special sub-signal on a television television channel, channel that receivers can use to compensate for the ghosting (television), ghosting effect of a television signal distorted by multipath propagation between ...

, a television subsignal *

Grey component replacement Within the CMY color space used in color printing, a range of colors can be achieved by combining the three primary colors. This combination can be thought of as a hue component (which will require a maximum of two primary colors) and a grey comp ...

, substitution of black ink for gray ink in color printing * Group coded recording, a technique for encoding digital data on magnetic tape or disk

Transportation

* GCR, ICAO code for

Tianjin Airlines : ''See Grand China Air for the holding company of Hainan Airlines.'' Tianjin Airlines ( —formerly Grand China Express Air) is a Chinese airline headquartered in Tianjin Binhai International Airport passenger terminal building, Dongli District, ...

, China * GCR, stock symbol for

Gaylord Container Corporation Gaylord Container Corporation ( AMEX: GCR) was an American integrated manufacturer of packaging materials, primarily corrugated containers. Operating from 1986 until 2002, most of the company's facilities were originally part of Crown Zellerbach' ...

, an American packing material manufacturer *

Great Central Railway The Great Central Railway in England was formed when the Manchester, Sheffield and Lincolnshire Railway changed its name in 1897, anticipating the opening in 1899 of its London Extension. On 1 January 1923, the company was grouped into the ...

, a British railway company **

Great Central Railway (heritage railway) The Great Central Railway (GCR) is a heritage railway in Leicestershire, named after the company that originally built this stretch of railway. It runs for between the town of Loughborough and a new terminus in the north of Leicester. It ...

Great Central Railway (Nottingham) The Nottingham Heritage Railway (formerly known as Great Central Railway (Nottingham) and Nottingham Transport Heritage Centre) is a heritage railway and transport museum on the south side of the village of Ruddington in Nottinghamshire. The ...

Other uses

Glass City Rollers Glass City Rollers (GCR) is a roller derby league based in Toledo, Ohio. Founded in 2007, the league currently consists of a single team which competes against teams from other leagues. Glass City is a member of the Women's Flat Track Derby Assoc ...

, an American roller derby league * Graduate Common Room, a

Common Room (university) A common room is a group into which students and the academic body are organised in some universities in the United Kingdom and Ireland—particularly collegiate universities such as Oxford and Cambridge, as well as the University of Bristol ...

for postgraduate students *

Global Corruption Report The Global Corruption Report is one of Transparency International's flagship publications, bringing together experts from all over the world to discuss and analyze corruption in a specific sector. Reports have focused on corruption in climate change ...

Transparency International Transparency International e.V. (TI) is a German registered association founded in 1993 by former employees of the World Bank. Based in Berlin, its nonprofit and non-governmental purpose is to take action to combat global corruption with civil ...

Gray City Rebels The Gray City Rebels (GCR) is a women's flat track roller derby league based in São Paulo, Brazil. Founded in 2010, the league consists of a single travel team, which competes against teams from other leagues, and is a member of the Women's Flat ...

, a Brazilian roller derby league *

Green Corn Revival Green Corn Revival (often abbreviated GCR) was an American rock music, rock band from Weatherford, Oklahoma. History Formation and ''The Oklahoma EP'' (2009-2010) Green Corn Revival was first formed in early 2009 by singer/songwriter Jared Deck. ...

, an American band * gcr, ISO 639-3 code for the

French Guianese Creole French Guianese Creole (Kriyòl; also called variously Guianan Creole, Guianese Creole in English and Créole guyanais or Guyanais in French) is a French-based creole language spoken in French Guiana, and to a lesser degree, in Suriname and G ...

language * ' (

Revolutionary Communist Group (Lebanon) The Revolutionary Communist Group – RCG (Arabic: المجموعة الشيوعية الثورية , ''Tajammu' al-Shuyu'i al-Thawri''), or Groupe Communiste Révolutionnaire (GCR) in French language, French, is a Trotskyist organisation in Leban ...

), a Lebanese Trotskyite group {{disambiguation