gray
- noun
- /ɡreɪ/
- Specialized
- A whole body dose of five or more grays is fatal.
- 16 gray
- grays of neutron radiation
Examples
-
The unit of dose is the gray.
Academic text (2002) -
Radiation dose is measured in grays, with one gray (Gy) equivalent to absorbing one joule of radiation energy per kilogram of body tissue.
-
A whole body dose of five or more Grays is fatal.
-
FIGURE 3. THREE X-RAY BEAM ARRANGEMENTS, each normalized to deliver 60 gray (60 J/kg) to a target.
Academic text (2002) -
Equal exposure to different types of radiation expressed as gray does not, however, necessarily produce equal biological effects.
Synonyms
A unit that measures radiation energy absorbed by one kilogram of material
Compounds
- Specialized
The darker part of the brain and spinal cord containing nerve cells or used to mean being smart
- US
A large wild animal like a dog with gray fur that lives in forests and often hunts in packs
- US
A medium-sized wild animal with gray fur that lives in North and Central America and can climb trees
- US
A medium-sized grey parrot from Africa that is very intelligent and copies human speech
- Jargon
A person who finds computer security problems and sometimes breaks the law to test them
- Specialized
An object that emits less light and heat than a perfect emitter at the same temperature
- US
A place where goods are sold without manufacturer permission, often cheaper and without warranty
- Specialized
A small willow bush in the eastern United States with long narrow leaves that are gray and hairy underneath
A common medium-sized squirrel from eastern North America with gray fur and a bushy tail
A medium-sized birch tree with white or pale grey bark from eastern North America
A large gray bird that catches insects and lives in the southeastern United States and Caribbean
- Specialized
A tree that loses its leaves each year with smooth gray bark and broad leaves
- US
A medium-sized birch tree with pale gray bark that grows in eastern North America in old fields and burned areas
- US
A fish with a long rounded body that lives in seas and rivers that people often eat
A small plump bird with grey feathers and an orange face that lives in farmland
A large grey-brown eagle with a short white tail shaped like a wedge found in Europe and Greenland
- Specialized
Part of the brain and spinal cord that contains nerve cells and processes information
- Specialized
A large gray tree squirrel with a bushy tail that lives in western United States forests
Surface Forms
Etymology
The unit gray is named after the British scientist Gray who studied radiation, so this use of 'gray' honors his name and is used to measure absorbed radiation energy.