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GY, Gy, or gy may refer to:


Units of measurement

The gray is a derived unit of ionizing radiation dose in the International System of Units (SI). It is defined as the absorption of one joule of radiation energy per kilogram of matter.

Galactic year unit of time

The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. Estimates of the length of one orbit range from 225 to 250 million terrestrial years. The Solar System is traveling at an average speed of 828,000 km/h (230 km/s) or 514,000 mph (143 mi/s) within its trajectory around the galactic center, a speed at which an object could circumnavigate the Earth's equator in 2 minutes and 54 seconds; that speed corresponds to approximately 1/1300 of the speed of light.


Pierre Maurice Gy was a chemist and statistician. Born in Paris, France, to Felix and Clemence, Gy graduated in chemical engineering from ESPCI ParisTech in 1946.

Master of the Order of Preachers Wikimedia list article

The Master of the Order of Preachers is the leader of the Order of Preachers, commonly known as the Dominicans.


Gy, Switzerland Place in Geneva, Switzerland

Gy is a municipality in Canton of Geneva, in Switzerland.

Guyana Country in South America

Guyana, officially the Co-operative Republic of Guyana, is a country on the northern mainland of South America. It is often considered part of the Caribbean region because of its strong cultural, historical, and political ties with other Anglo-Caribbean countries and the Caribbean Community (CARICOM). Guyana is bordered by the Atlantic Ocean to the north, Brazil to the south and southwest, Venezuela to the west, and Suriname to the east. With an area of 215,000 square kilometres (83,000 sq mi), Guyana is the third-smallest sovereign state on mainland South America after Uruguay and Suriname.

.gy is the Internet country code top-level domain (ccTLD) for Guyana. It is administered and managed by the Centre for Information Technology in the University of Guyana.


Gabon Airlines is the name of two incarnations of Gabonese airline, headquartered in Libreville. The first incarnation of Gabon Airlines which was operated from 2007 to 2012, concentrating on African and European flight services out of Libreville International Airport. In April 2015, the second incarnation of Gabon Airlines is due to redeveloped as a flag carrier, replacing the original Air Gabon.

Tri-MG Intra Asia Airlines airline

Tri-MG Intra Asia Airlines is an airline that mainly operates cargo aircraft on scheduled routes for contract charters and non-scheduled routes for ad-hoc charters.

Other uses

The SASM/GNC/SRC romanization of Tibetan, commonly known as Tibetan pinyin, is the official transcription system for the Tibetan language in the People's Republic of China for personal names and place names. It is based on the Lhasa dialect of Standard Tibetan and reflects the pronunciation except that it does not mark tone. It is used within China as an alternative to the Wylie transliteration for writing Tibetan in the Latin script within academic circles; Wylie transliteration is more commonly used.

Grapevine yellows (GY) are diseases associated to phytoplasmas that occur in many grape growing areas worldwide and are of still increasing significance. Phytoplasmas are obligate cell wall-less bacterial pathogens, and rely on plants and homopterous phloem-sucking insects for biological dispersal. In plants, they are mainly restricted to the phloem tissue where they can move and multiply through the sieve tube elements.. Almost identical symptoms of the GY syndrome are caused by different phytoplasmas and appear on leaves, shoots and clusters of grapevine. Typical symptoms include discoloration and necrosis of leaf veins and leaf blades, downward curling of leaves, lack or incomplete lignification of shoots, stunting and necrosis of shoots, abortion of inflorescences and shrivelling of berries. Those symptoms are related to callose deposition at the sieve plates and subsequent degeneration of the phloem. Although no resistant cultivars of Vitis vinifera or rootstocks are known so far, the various grape varieties differ considerably as far as symptom severity is concerned. It ranges from fast decline and death in highly susceptible cultivars to tolerant rootstocks as symptomless carriers of the pathogen. Currently, the only available control strategies include early eradication of infected crops, early eradication of infected source plants, and chemical control of vectors through regular insecticide treatments.

The GPRS core network is the central part of the general packet radio service (GPRS) which allows 2G, 3G and WCDMA mobile networks to transmit IP packets to external networks such as the Internet. The GPRS system is an integrated part of the GSM network switching subsystem.

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The word at is an English word, which may act as a preposition.

MP, Mp, mp or .mp may refer to:

Or is a grammatical conjunction in English.

Pa is an informal term for father.

GB or Gb may refer to:

GH, Gh, gh, or .gh may refer to:

CM or its variants may refer to:

CZ, C-Z, C/Z, or Cz may refer to:

BG, B.G., or bg may refer to:

MN may refer to:

Th or TH may refer to:

GC may stand for:

pH is a measure of acidity or alkalinity.

ZH may refer to:

SL may refer to:

EA is an acronym for Electronic Arts, an American video game company.

TL or Tl may refer to:

EM, Em or em may refer to:

The EU is the European Union, a politico-economic union of European nations.