Englishfor English speakers
coherent
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adjective
(= consistent, logical)
marked by an orderly, logical, and aesthetically consistent relation of parts
a coherent argument
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adjective
(= lucid)
capable of thinking and expressing yourself in a clear and consistent manner
a lucid thinker
she was more coherent than she had been just after the accident
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adjective
(physics) of waves having a constant phase relation
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adjective
(= tenacious)
sticking together
two coherent sheets
tenacious burrs
radiation
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noun
energy that is radiated or transmitted in the form of rays or waves or particles
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noun
the act of spreading outward from a central source
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noun
a radial arrangement of nerve fibers connecting different parts of the brain
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noun
the spread of a group of organisms into new habitats
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noun
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
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noun
syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours
he was suffering from radiation
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noun
(= radiotherapy)
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance