World Book 1997 4.0

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<HTML> <HEAD><TITLE>RETARDED</TITLE></HEAD> <BODY BGCOLOR="#ffffff"> <A HREF="a.dic">A</A> <A HREF="b.dic">B</A> <A HREF="c.dic">C</A> <A HREF="d.dic">D</A> <A HREF="e.dic">E</A> <A HREF="f.dic">F</A> <A HREF="g.dic">G</A> <A HREF="h.dic">H</A> <A HREF="i.dic">I</A> <A HREF="j.dic">J</A> <A HREF="k.dic">K</A> <A HREF="l.dic">L</A> <A HREF="m.dic">M</A> <A HREF="n.dic">N</A> <A HREF="o.dic">O</A> <A HREF="p.dic">P</A> <A HREF="q.dic">Q</A> <A HREF="r.dic">R</A> <A HREF="s.dic">S</A> <A HREF="t.dic">T</A> <A HREF="u.dic">U</A> <A HREF="v.dic">V</A> <A HREF="w.dic">W</A> <A HREF="x.dic">X</A> <A HREF="y.dic">Y</A> <A HREF="z.dic">Z</A> <A NAME="retardate"> retardate, noun.<DL COMPACT><DD> a person who is retarded. Ex. "Criminal" covers a broad span of lawbreakers from the psychopath to the mental retardate (Science News Letter). </DL> <A NAME="retardation"> retardation, noun.<DL COMPACT><DD> 1. the act of retarding. Ex. A gradual change ... would then effect the necessary retardation in the rate of increase (Thomas Malthus). <DD> 2. the condition of being retarded. Ex. The business slowdown ... was described as a "pause," a "retardation" (M. A. Kriz). <DD> 3. =mental retardation. <DD> 4. that which retards; hindrance. <DD> 5. a decrease in velocity; negative acceleration. <DD> 6. (Music.) a discord similar to suspension, resolving upward instead of downward. </DL> <A NAME="retardative"> retardative, adjective.<DL COMPACT><DD> tending to retard. </DL> <A NAME="retardatory"> retardatory, adjective.<DL COMPACT><DD> tending to retard; of a retarding effect. </DL> <A NAME="retarded"> retarded, adjective.<DL COMPACT><DD> slow in mental development; backward. Ex. Retarded children--I.Q. between 65 and 90--have the capacity to learn if properly taught (Scientific American). </DL> <A NAME="retardee"> retardee, noun.<DL COMPACT><DD> a retarded person; retardate. </DL> <A NAME="retarder"> retarder, noun.<DL COMPACT><DD> 1. a person or thing that retards. <DD> 2. a braking device built into the hump track of a railroad yard to regulate a car's speed as it rolls down the hump. </DL> <A NAME="retardment"> retardment, noun. =retardation.</DL> <A NAME="retch"> retch, intransitive verb.<DL COMPACT><DD> to make efforts to vomit; make straining movements like those of vomiting. <DD>v.t. to throw up in retching; vomit. </DL> <A NAME="retd"> retd.,<DL COMPACT><DD> 1. retained. <DD> 2. retired. <DD> 3. returned. </DL> <A NAME="retd"> ret'd.,<DL COMPACT><DD> returned. </DL> <A NAME="rete"> rete, noun, pl. -tia.<DL COMPACT><DD> a network, such as of fibers, nerves, or blood vessels. </DL> <A NAME="retell"> retell, transitive verb, -told, -telling.<DL COMPACT><DD> to tell again. adj. retellable. </DL> <A NAME="retem"> retem, noun.<DL COMPACT><DD> a desert shrub of the Near East with small, white flowers and rushlike branches. It is the juniper mentioned in the Old Testament. </DL> <A NAME="retemirabile"> rete mirabile, pl. retia mirabilia.<DL COMPACT><DD> an elaborate network or plexus of small arteries and veins forming one unified system between two parts of a larger artery or vein, and usually found near the junction of an extremity and the main body. </DL> <A NAME="retene"> retene, noun.<DL COMPACT><DD> a white, crystalline hydrocarbon obtained especially from the tar of resinous woods and certain fossil resins. </DL> <A NAME="retention"> retention, noun.<DL COMPACT><DD> 1. a retaining. <DD> 2. a being retained. <DD> 3. the power to retain. <DD> 4. the ability to remember. </DL> <A NAME="retentionist"> retentionist, adjective, noun.<DL COMPACT><DD>adj. favoring retention, as of a law or policy. <DD>noun a retentionist person or group. </DL> <A NAME="retentive"> retentive, adjective.<DL COMPACT><DD> 1. able to hold or keep. Ex. a material retentive of moisture. <DD> 2. able to remember easily. Ex. a retentive memory. adv. retentively. noun retentiveness. </DL> <A NAME="retentivity"> retentivity, noun.<DL COMPACT><DD> 1. the power to retain; retentiveness. <DD> 2. the capacity of a substance to retain induced magnetic force after the source of the magnetization has been removed. <DD> 3. the power of resisting magnetization. </DL> <A NAME="retepore"> retepore, noun.<DL COMPACT><DD> any one of a group of bryozoans that form corallike colonies. </DL> <A NAME="retest"> retest, verb, noun.<DL COMPACT><DD>v.t. to test again. Ex. to retest airplane pilots. <DD>noun the act or process of retesting; repeated test. Ex. to take a retest. </DL> <A NAME="rethe"> rethe, noun.<DL COMPACT><DD> one of the governing districts or provinces into which Albania is divided. </DL> <A NAME="rethink"> rethink, verb, -thought, -thinking.<DL COMPACT><DD>v.t. to think out, or think over, again; consider afresh. Ex. Rahner believes that each generation must rethink the problems of theology (London Times). <DD>v.i. to think again. Ex. I cannot help thinking and rethinking of your going to the island so heroically (Jane Austen). <DD>noun the act of rethinking; reconsideration. Ex. Using the metal [titanium] to its best advantage calls for a thorough rethink of metal-working methods (New Scientist). </DL> <A NAME="retiarius"> retiarius, noun, pl. -arii.<DL COMPACT><DD> a gladiator equipped with a net and a trident. </DL> <A NAME="retiary"> retiary, adjective.<DL COMPACT><DD> 1. using a net or any entangling device. <DD> 2. making a web. Ex. a retiary spider. <DD> 3. netlike. </DL> <A NAME="reticence"> reticence, noun.<DL COMPACT><DD> the tendency to be silent or say little; reserve in speech. </DL> <A NAME="reticency"> reticency, noun, pl. -cies. =reticence.</DL> <A NAME="reticent"> reticent, adjective.<DL COMPACT><DD> disposed to keep silent or say little; not speaking freely; reserved in speech. Ex. She had been shy and reticent with me, and now ... she was telling me aloud the secrets of her inmost heart (W. H. Hudson). (SYN) reserved, taciturn. adv. reticently. </DL> <A NAME="reticle"> reticle, noun.<DL COMPACT><DD> a line, or a network of fine lines, wires, or the like, placed in the focus of the objective of a telescope or other optical instrument to make accurate observation easier. </DL> <A NAME="reticular"> reticular, adjective.<DL COMPACT><DD> 1. having the form of a net; netlike. Ex. reticular tissue, reticular fibers. <DD> 2. intricate; entangled. adv. reticularly. </DL> <A NAME="reticularformation"> reticular formation,<DL COMPACT><DD> a network of small nerve cells extending from the diencephalon downward through the spinal cord, with distinct formations in the medulla oblongata and mesencephalon. It exerts control over the body's motor activities. Ex. The reticular formation is now often referred to as the "working centre" of the brain (New Scientist). </DL> <A NAME="reticulate"> reticulate, adjective, verb, -lated, -lating.<DL COMPACT><DD>adj. covered with a network; netlike. Reticulate leaves have the veins arranged like the threads of a net. <DD>v.t. to cover or mark with a network. <DD>v.i. to form a network. adv. reticulately. </DL> <A NAME="reticulated"> reticulated, adjective. =reticulate.</DL> <A NAME="reticulatepython"> reticulate python,<DL COMPACT><DD> a python of southeastern Asia and the East Indies that is among the world's largest snakes, growing up to 30 feet in length. </DL> <A NAME="reticulation"> reticulation, noun.<DL COMPACT><DD> 1. a reticulated formation, arrangement, or appearance; network. <DD> 2. one of the meshes of a network. </DL> <A NAME="reticule"> reticule, noun.<DL COMPACT><DD> 1. a woman's small handbag, especially one with a drawstring. Ex. women in cloaks, bearing reticules and bundles (Henry James). <DD> 2. =reticle. </DL> <A NAME="reticuli"> Reticuli, noun.<DL COMPACT><DD> genitive of Reticulum. </DL> <A NAME="reticulocyte"> reticulocyte, noun.<DL COMPACT><DD> a red blood cell that is not fully developed. Reticulocytes comprise from 0.1 to 1 per cent of the red blood cells. </DL> <A NAME="reticulocytosis"> reticulocytosis, noun.<DL COMPACT><DD> the presence of an unusually large number of reticulocytes in the blood. </DL> <A NAME="reticuloendothelial"> reticuloendothelial, adjective.<DL COMPACT><DD> of or having to do with the reticuloendothelial system. Ex. a reticuloendothelial cell or tissue. </DL> <A NAME="reticuloendothelialsystem"> reticuloendothelial system,<DL COMPACT><DD> a system of cells in the body, especially in the spleen, lymph nodes, bone marrow, and liver, that function in freeing the body of foreign matter and disease germs, in the formation of certain blood cells, and in the storing of fatty substances. Ex. They found that cortisone depressed the activity of the blood cell forming reticuloendothelial system, particularly the spleen (Science News Letter). </DL> <A NAME="reticulose"> reticulose, adjective.<DL COMPACT><DD> netlike; reticular. </DL> <A NAME="reticulosis"> reticulosis, noun, pl. -ses. =reticulocytosis.</DL> <A NAME="reticulum"> reticulum, noun, pl. -la.<DL COMPACT><DD> 1. any reticulated system or structure; network. <DD> 2. the second stomach of animals that chew the cud. </DL> <A NAME="reticulum"> Reticulum, noun, genitive Reticuli.<DL COMPACT><DD> a southern constellation near Argo. </DL> <A NAME="reticulumcellsarcoma"> reticulum-cell sarcoma,<DL COMPACT><DD> a cancer of the lymphatic tissue characterized by the formation of a network of malignant cells. </DL> <A NAME="retiform"> retiform, adjective.<DL COMPACT><DD> netlike; reticulate. </DL> <A NAME="retina"> retina, noun, pl. -nas, -nae.<DL COMPACT><DD> a layer of cells at the back of the eyeball which is sensitive to light and receives the images of things looked at. The retina contains the rods and cones near its outer surface, and is continuous on its inner surface with the optic nerve. Ex. Towards the periphery of the retina the proportion of rods increases. That is why a very faint star can often be seen only when one looks slightly to one side of it (Science News). </DL> <A HREF="retinacu.dic">NEXT</A>