each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening
a broad, flat marine or freshwater fish with a cartilaginous skeleton, winglike pectoral fins, and a long slender tail. Many rays have venomous spines or electric organs
(1627–1705), English naturalist. He was the first to classify flowering plants into monocotyledons and dicotyledons, and he established the species as the basic taxonomic unit
(1921–92), Indian movie director. He was the first to bring Indian movies to the attention of Western audiences
an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light
(1890–1976), US photographer, painter, and filmmaker; born Emmanuel Radnitsky. A leading figure in the New York and European Dada movements, he is best known for Violon d’Ingres (1924), his photograph in which he made the back of a female nude resemble a violin
a large, long-tailed ray that has a fleshy, hornlike projection on each side of the mouth. It occurs on or near the surface of warm seas and feeds on plankton
a large marine ray with long pointed pectoral fins, a long tail, and a distinct head
(1902–84) US entrepreneur and philanthropist; full name Raymond Albert Kroc. In 1955, he began his franchise empire of McDonald’s fast-food restaurants
(1904–87), US dancer and actor; full name Raymond Wallace Bolger. He is best known for his role as the scarecrow in The Wizard of Oz (1939)
(1930–2004), US pianist and singer; born Ray Charles Robinson. Totally blind from the age of six, he drew on blues, jazz, and country music for songs such as “What'd I Say” (1959), “Georgia On My Mind” (1960), and “Busted” (1963)
a highly energetic atomic nucleus or other particle traveling through space at a speed approaching that of light
(1907–86), US actor; born in Wales; born Reginald Alfred John-Truscott-Jones. His many movies include The Lost Weekend (1945), A Life of Her Own (1950), and Dial M for Murder (1954)
a fungal disease of chrysanthemums that causes collapse and rotting of the leading shoot
(in a composite flower head of the daisy family) any of a number of strap-shaped and typically sterile florets that form the ray. In plants such as dandelions, the flower head is composed entirely of ray florets
(1920–2012), US writer of science fiction; full name Raymond Douglas Bradbury. Notable works: The Martian Chronicles (1950), Fahrenheit 451 (1951), and the semiautobiographical Green Town trilogy— Dandelion Wine (1957), Something Wicked This Way Comes (1962), and Farewell Summer (2006)
a sluggish bottom-dwelling marine ray that typically lives in shallow water and can produce an electric shock for the capture of prey and for defense
a small almost transparent freshwater fish with an opaque body cavity. Native to South America, it is popular in aquariums
a device for generating X-rays by accelerating electrons to high energies and causing them to strike a metal target from which the X-rays are emitted
a fish of a large group having thin fins strengthened by slender rays, including all bony fishes apart from the coelacanth and lungfishes
(in double refraction) the light ray that does not obey the ordinary laws of refraction
a high-vacuum tube in which cathode rays produce a luminous image on a fluorescent screen, used chiefly in televisions and computer terminals
(1956-), US boxer; full name Ray Charles Leonard. Named "Fighter of the Decade" for the 1980s, he won five world titles in five different weight divisions
the branch of astronomy concerned with the detection and measurement of high-energy electromagnetic radiation emitted by celestial objects
the scattering of X-rays by the regularly spaced atoms of a crystal, useful in obtaining information about the structure of the crystal
(1920–89), US boxer; born Walker Smith. He was world welterweight champion from 1946 to 1951 and seven times the middleweight champion
the study of crystals and their structure by means of X-ray diffraction
an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light
an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light
each of the long, slender bony protuberances supporting the fins of most bony fishes
a fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.)
rays of low penetrative power consisting of slow electrons or other particles ejected from atoms by the impact of ionizing radiation
penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei
a devil ray that occurs in all tropical seas and may reach very great size. It is sometimes seen leaping high out of the water
a ray of shallow inshore waters that has spines on the back and tail, in particular