- any of the lines or streams in which light appears to radiate from a luminous body.
- the straight line normal to the wave front in the propagation of radiant energy.
- a stream of material particles all moving in the same straight line.
- one of a system of straight lines emanating from a point.
- Also called half-line . the part of a straight line considered as originating at a point on the line and as extending in one direction from that point.
- one of the branches or arms of a starfish or other radiate animal.
- one of the bony or cartilaginous rods in the fin of a fish.
verb (used without object)
verb (used with object)
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Idioms for ray
Origin of ray1
synonym study for ray
OTHER WORDS FROM rayraylike, adjective
Definition for ray (2 of 3)
Origin of ray2
Definition for ray (3 of 3)
Example sentences from the Web for ray
The SunSprite has a UV sensor, which warns you when the rays get intense enough to cause sunburn.Fight Seasonal Affective Disorder With This New Tracker|DailyBurn|November 7, 2014|DAILY BEAST
According to recent studies, 80 percent of skin aging is a result of UV rays.
Studies revealed that exposure to harmful UV rays could cause wrinkles and other signs of aging, as well as skin cancer.
Luqman explained that they represented the sun shining down on Earth, facets mimicking rays of light.Fighting Back With Faith: Inside the Yezidis’ Iraqi Temple|Michael Luongo|August 21, 2014|DAILY BEAST
All of these instruments orbit Earth, beyond the atmosphere that blocks X-rays and most ultraviolet light.
Still a-shiver at dawn, I saddled up and loped for the crest of the nearest divide to get the benefit of the first sun-rays.Raw Gold|Bertrand W. Sinclair
The rays of the ascending sun were bright upon it: and the superb palace of the Spanish kings shone in its fullest splendour.The Pastor's Fire-side Vol. 3 of 4|Jane Porter
He was a good Eastern scholar, but the dull rays of a small oil lamp were not helpful in a task always difficult to English eyes.The Red Year|Louis Tracy
We passed several large sting-rays asleep on the surface of the sea, which our people ineffectually endeavoured to harpoon.
And as she spread her fingers five little rosy rays came out of each sleeve.Honey-Bee|Anatole France