GY
Abbreviation with 2 meanings
| Stands for | Guyana |
|---|---|
| Meanings | 2 |
| Categories | Geography & Places, Units & Measurements |
| Also written | Gy |
GY has two meanings. It stands for Guyana (country code) or Gray (metric and SI unit).
Meanings of GY at a glance
| # | GY stands for | Context |
|---|---|---|
| 1 | Guyana | Geography & Places › Country Code |
| 2 | Gray | Units & Measurements › Metric and SI Unit |
1. Guyana
Geography & Places · Country Code Abbreviations
Guyana, the only English-speaking country in South America, has seen offshore oil discoveries since 2015 make it one of the world's fastest-growing economies. Georgetown is the capital and GUY the alpha-3 code.
Example: Oil platforms off GY now pump hundreds of thousands of barrels a day.
Guyana was British Guiana until independence in 1966. Kaieteur Falls is among the world's most powerful single-drop waterfalls. Venezuela claims the Essequibo region, about two-thirds of the country.
2. Gray (Gy)
Units & Measurements · Metric and SI Unit Abbreviations
Absorbed radiation dose, one joule of energy deposited per kilogram of tissue or material. Radiotherapy prescriptions are written in Gy, for example 60 Gy delivered in 30 daily fractions of 2 Gy.
Example: The patient will receive 50 Gy in 25 fractions to the chest wall.
Named for British physicist Louis Harold Gray and adopted in 1975 to replace the rad: 1 Gy equals 100 rad, so radiation oncologists treat the centigray (cGy) as equivalent to the old rad. Absorbed dose does not account for biological effect; the sievert is used to estimate health risk.
Related abbreviations
More country code abbreviations
- GRE – Greece
- GS – South Georgia and the South Sandwich Islands
- GT – Guatemala
- GW – Guinea-Bissau
- HK – Hong Kong
- HM – Heard Island and McDonald Islands
- HN – Honduras
- HR – Croatia
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