ray
- noun
- /reɪ/
- Specialized
- During our biology class, we studied how the rays of fish fins differ between species.
- fin ray
- ray-finned fish
Examples
-
The tuna's rays support the fin, allowing it to swiftly navigate through the water.
-
The number of rays varied, up to at least eight
Academic text (2007) -
And not only do the cod come, but huge things like manta rays come down to these particular places on the coral reef.
-
Geographically, no group of vertebrates has as wide a range as ray-finned fishes.
Academic text (2010) -
In the aquarium, we learned how the rays in a fish's fin help stabilize its swimming.
Compounds
- Specialized
Very strong invisible rays that come from radioactive materials and can harm living tissue
- Specialized
A machine that uses X rays to take pictures of the inside of the body or of bags
- Specialized
A strong invisible light from the sun that can damage skin and kill germs
A very large sea animal with wide triangle-shaped fins that eats tiny sea plants and animals
- Specialized
A stream of electrons in a vacuum tube that makes images on old television screens or similar devices
- Archaic
A large glass device in old TVs and computer screens that makes pictures with a beam of electrons
- Specialized
Special film that records pictures made by X-rays to show bones or the inside of objects
A flat sea fish with a rounded body that lives on the sea floor and gives strong electric shocks
A large flat sea animal in warm water with long pointed fins and white spots on its back
- Specialized
A way X-rays scatter from the atoms in a crystal to show its structure
- Archaic
An electronic device that shows changing electrical signals as lines on a screen using a tube
- Specialized
A large flat sea animal with wing-like fins and a pointed nose found along the east coast of North America
- Specialized
A band of cells in a stem or root that moves water and nutrients sideways
- Archaic
People use a very short wave of energy to take pictures of the inside of the body
- Specialized
A lamp that gives strong ultraviolet light for medical or beauty treatments
- Specialized
A strong invisible light from a special lamp used for tanning or skin treatment
- Specialized
A thin layer of cells in a plant stem that moves water and food sideways
Surface Forms
Etymology
Ray meaning the thin bones in a fin comes from the idea of a 'spoke', from Latin radius, because these narrow supports act like little spokes that hold the fin.