<HEAD><TITLE>DICTIONARY: rad - radiately</TITLE></HEAD>
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<A NAME="rad">
<B>rad</B> (1) or <B>Rad, </B>noun, pl. <B>rad</B> or <B>rads,</B> <B>Rad</B> or <B>Rads.</B><DL COMPACT><DD> a unit for measuring absorbed doses of radiation, equal to 100 ergs of energy per gram. <BR> <I>Ex. The quantity of total body radiation that is fatal in almost all cases is close to 800 rads (Arnold L. Bachman).</I> </DL>
<B>rad.,</B><DL COMPACT><DD> an abbreviation for the following: <DD><B> 1. </B>radian. <DD><B> 2. </B>radical (the mathematical sign). <DD><B> 3. </B>radio. <DD><B> 4. </B>radius. <DD><B> 5. </B>radix (root). </DL>
<A NAME="rada">
<B>RADA</B> (no periods) or <B>R.A.D.A.,</B><DL COMPACT><DD> Royal Academy of Dramatic Art. </DL>
<A NAME="radar">
<B>radar, </B>noun.<DL COMPACT><DD><B> 1. </B>an instrument for determining the distance, direction, and speed of unseen objects by the reflection of radio waves. <BR> <I>Ex. In fog, rain, or snow, a ship's radar can spot others ships or icebergs in time to prevent collisions. ... Forecasters can look into a storm with radar and learn its size, shape, speed, direction of travel, and rate of development (Robert C. Guthrie).</I> <DD><B> 2. </B>this and other instruments and techniques which have developed from it, as a field of electronics. <BR> <I>Ex. to study radar.</I> <DD><B> 3. </B>a process by which the reflection of radio waves is measured. <BR> <I>Ex. The miracle underlying all radar is that men have learned ... to measure time in such infinitesimal amounts that radio echo ranges of objects miles away can be read with accuracy in yards (J. P. Baxter).</I> adj. <B>radarlike.</B> </DL>
<A NAME="radarastronomy">
<B>radar astronomy,</B><DL COMPACT><DD> a branch of astronomy that studies planets and other heavenly bodies by analyzing the echoes or reflections of radar signals sent from the earth at specific targets. </DL>
<A NAME="radarbeacon">
<B>radar beacon,</B><DL COMPACT><DD> a beacon that transmits radar waves to aid navigators to determine a plane's position. </DL>
<A NAME="radarfence">
<B>radar fence</B> or <B>screen,</B><DL COMPACT><DD> a protective chain of radar posts so placed around an area that their field is continuous. <BR> <I>Ex. The defense of North America involves radar screens, military airplanes, and defense against submarines (Bulletin of Atomic Scientists).</I> </DL>
<A NAME="radarman">
<B>radarman, </B>noun, pl. <B>-men.</B><DL COMPACT><DD> a technician in a branch of the armed forces, who operates or services radar equipment. </DL>
<A NAME="radarmap">
<B>radar-map, </B>transitive verb, intransitive verb, <B>-mapped,</B> <B>-mapping.</B><DL COMPACT><DD> to produce a map of (a land area, heavenly body, or the like) by analyzing and combining the reflections of radar signals beamed to specific locations. <BR> <I>Ex. About half the Moon's visible surface ... has been radar-mapped (Howard Simons).</I> </DL>
<A NAME="radarpicket">
<B>radar picket,</B><DL COMPACT><DD> a ship or aircraft with radar, stationed near the outside boundary of some area to detect approaching aircraft. </DL>
<A NAME="radarscope">
<B>radarscope, </B>noun.<DL COMPACT><DD> a screen or oscilloscope which displays the dots of light indicating the location of objects within the radar's range. </DL>
<A NAME="radartelescope">
<B>radar telescope,</B><DL COMPACT><DD> a radio telescope used, in radar astronomy, as a radar receiver to study and measure the distance of objects in outer space. </DL>
<A NAME="raddle">
<B>raddle</B> (1), noun, verb, <B>-dled,</B> <B>-dling.</B><DL COMPACT><DD><I>noun </I> <B>1. </B>one of the many slender sticks fastened to or woven between upright stakes, as to form a fence. <DD><B> 2. </B>such sticks. <DD><B> 3. </B>a fence made of them. <DD><I>v.t. </I> <B>=interweave.</B> </DL>
<A NAME="raddle">
<B>raddle</B> (2), noun, verb, <B>-dled,</B> <B>-dling.</B><DL COMPACT><DD><I>noun </I> red ocher; hematite. <DD><I>v.t. </I> <B>1. </B>to paint with red ocher. <DD><B> 2. </B>to color heavily with rouge. Also, <B>reddle,</B> <B>ruddle.</B> </DL>
<A NAME="raddled">
<B>raddled, </B>adjective.<DL COMPACT><DD> coarsely streaked with red, as if painted with raddle. <BR> <I>Ex. raddled cheeks.</I> </DL>
<A NAME="raddleman">
<B>raddleman, </B>noun, pl. <B>-men.</B><DL COMPACT><DD> a person who digs or sells red ocher. Also, <B>reddleman,</B> <B>ruddleman.</B> </DL>
<A NAME="radha">
<B>Radha, </B>noun.<DL COMPACT><DD> (Hindu Mythology.) a shepherdess who was the consort of Krishna. <BR> <I>Ex. Radha and Krishna are the archetypal lovers of Hindu India (Manchester Guardian Weekly).</I> </DL>
<A NAME="radiac">
<B>radiac, </B>noun.<DL COMPACT><DD> a device for detecting and measuring radioactivity. </DL>
<A NAME="radial">
<B>radial, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>of or like radii or rays. <DD><B> 2. </B>arranged like or in radii or rays. <BR> <I>Ex. At a little distance from the center the wind is probably nearly radial (Science).</I> <DD><B> 3. </B>of the radius of a circle. <BR> <I>Ex. ... the placing of a large fraction of the total mass at the radial distance assigned to the phosphorus atoms (A. W. Haslett).</I> <DD><B> 4. </B>of or near the radius (a bone of the forearm). <BR> <I>Ex. a radial nerve; ... palpating the radial pulse at the wrist (Time).</I> <DD><B> 5. </B>of or having to do with the arm of a starfish or other echinoderm. <DD><I>noun </I> <B>1. </B><B>=radial-ply tire.</B> <DD><B> 2. </B>(Biology.) a radial nerve, artery, or organ. <DD><B> 3. </B>(Aeronautics.) any one of the lines of position radiating from a radio navigation facility, such as an omnirange or VOR. <DD><B> 4. </B><B>=radial engine.</B> adv. <B>radially.</B> </DL>
<A NAME="radialengine">
<B>radial engine,</B><DL COMPACT><DD> an internal-combustion engine having radially arranged cylinders, formerly much used for aircraft. </DL>
<A NAME="radialplytire">
<B>radial-ply tire,</B><DL COMPACT><DD> an automobile tire with parallel cords running at right angles to the center line of the tread. </DL>
<A NAME="radialsymmetry">
<B>radial symmetry,</B><DL COMPACT><DD> (Zoology.) a condition in which like parts are arranged about an axis, from which they radiate like the parts of a flower, as in many echinoderms. </DL>
<A NAME="radialtire">
<B>radial tire,</B> <B>=radial-ply tire.</B></DL>
<A NAME="radialvelocity">
<B>radial velocity,</B><DL COMPACT><DD> the velocity of a star along the line of sight of an observer, determined by measuring the positions of lines in the star's spectrum, usually with a spectroscope. </DL>
<A NAME="radian">
<B>radian, </B>noun.<DL COMPACT><DD> the angle at the center of a circle, that subtends an arc of the circle equal in length to the radius; an angle of 57.2958 + degrees. (Abbr:) rad. </DL>
<A NAME="radiance">
<B>radiance, </B>noun.<DL COMPACT><DD><B> 1. </B>vivid brightness; brilliance. <BR> <I>Ex. the radiance of the sun, (Figurative.) the radiance of a smile.</I> <DD><B> 2. </B><B>=radiation.</B> </DL>
<A NAME="radiancy">
<B>radiancy, </B>noun. <B>=radiance.</B></DL>
<A NAME="radiant">
<B>radiant, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>shining; bright; beaming. <BR> <I>Ex. radiant sunshine, (Figurative.) a radiant smile.</I> <DD><B> 2. </B>sending out rays of light or heat. <BR> <I>Ex. The sun is a radiant body.</I> <DD><B> 3. </B>bright with light. <BR> <I>Ex. The new house was radiant with light (Arnold Bennett).</I> <DD><B> 4. </B>sent off in rays from some source; radiated. <BR> <I>Ex. We get radiant heat from the sun.</I> <DD><B> 5. </B>strikingly fine or splendid, as looks or beauty, or the person. <BR> <I>Ex. He delighted in the radiant good looks of his betrothed (Edith Wharton).</I> <DD><I>noun </I> <B>1. </B>(Physics.) a point or object from which light or heat radiates. <DD><B> 2. </B>the point in the heavens from which the meteors in a shower seem to have come. <BR> <I>Ex. The radiant of a meteoric shower is the vanishing point in the perspective of the parallel trails (Robert H. Baker).</I> adv. <B>radiantly.</B> </DL>
<A NAME="radiantenergy">
<B>radiant energy,</B><DL COMPACT><DD> waves of light, heat, or electricity (and, formerly, sound), that are sent out through space; energy in the form of waves, especially electromagnetic waves. X rays, radio waves, and visible light are forms of radiant energy. <BR> <I>Ex. Radiant energy lifted ocean water into the sky and then produced the rain that dropped to the earth to be collected and piped to your house (Ralph E. Lapp).</I> </DL>
<A NAME="radiantflux">
<B>radiant flux,</B><DL COMPACT><DD> (Physics.) the rate of emission of radiant energy, in watts or in ergs per second. </DL>
<A NAME="radiantheat">
<B>radiant heat,</B><DL COMPACT><DD> heat transmitted by electromagnetic radiation. </DL>
<A NAME="radiantheating">
<B>radiant heating,</B><DL COMPACT><DD> a system of heating in which a network of hot-water or steam pipes is enclosed within walls, floors, and ceiling, instead of using radiators; panel heating. </DL>
<A NAME="radiate">
<B>radiate, </B>verb, <B>-ated,</B> <B>-ating,</B> adjective, noun.<DL COMPACT><DD><I>v.t. </I> <B>1. </B>to give out rays of. <BR> <I>Ex. The sun radiates light and heat.</I> <DD><B> 2. </B>to give out; send forth. <BR> <I>Ex. (Figurative.) Her face radiates joy.</I> <DD><I>v.i. </I> <B>1. </B>to give out rays; shine. <BR> <I>Ex. Many giant red stars are known to be radiating (New Astronomy).</I> (SYN) glow. <DD><B> 2. </B>to issue in rays. <BR> <I>Ex. Heat radiates from those hot steam pipes.</I> <DD><B> 3. </B>to spread out from a center. <BR> <I>Ex. Roads radiate from the city in every direction.</I> (SYN) diverge. <DD><I>adj. </I> <B>1. </B>having rays. <BR> <I>Ex. A daisy is a radiate flower.</I> <DD><B> 2. </B>radiating from a center. <DD><B> 3. </B>of an animal with a radial structure. <DD><I>noun </I> invertebrate animal having a radial structure. </DL>
