[lahy-uh l] /ˈlaɪ əl/
Sir Charles, 1797–1875, English geologist.
Mount, a mountain in E central California, in Yosemite National Park, in the Sierra Nevada. 13,114 feet (3997 meters).
Also, Lyall. a mountain on the border of Alberta and British Columbia, Canada, in the Rocky Mountains. 11,520 feet (3511 meters).
Sir Charles. 1797–1875, Scottish geologist. In Principles of Geology (1830–33) he advanced the theory of uniformitarianism, refuting the doctrine of catastrophism
Scottish geologist who is considered one of the founders of modern geology. He is most famous for his principle of uniformitarianism, as first set forth in his three-volume Principles of Geology (1830-1833).
Our Living Language : As a boy, Charles Lyell collected butterflies. This hobby might seem a far cry from his later professional work in geology, but in fact the two were closely linked. At that young age, he was already a keen observer of nature with excellent instincts for comparison. Throughout his life, Lyell traveled and collected observations on natural phenomena as he had once collected butterflies. These observations convinced him even as a young man that nature was to be understood through genuinely natural processes rather than as the result of supernatural forces or catastrophic events. Thus was born the theory of uniformitarianism, which maintained that the same geological processes had been at work in the same way throughout Earth’s history, and that major features such as mountains showed that the Earth was very old, since geological processes worked very slowly. To convince people of his notions, Lyell needed to back them up with facts, and the three volumes of his pathbreaking Principles of Geology (1830-1833) are notable for being chock-full of geological facts. This principled method of thinking and marshaling evidence, no less than his radical ideas about the Earth’s history, was itself revolutionary for the time (something perhaps not appreciated today). By claiming that the Earth was many millions rather than a few thousands of years old, Lyell opened up vast new possibilities for other thinkers, most notably Charles Darwin, whose theory of evolution by natural selection also required time for slow, incremental changes in the history of life.
[lahy] /laɪ/ noun, Chemistry. 1. a highly concentrated, aqueous solution of potassium hydroxide or sodium hydroxide. 2. any solution resulting from leaching, percolation, or the like. /laɪ/ noun 1. any solution obtained by leaching, such as the caustic solution obtained by leaching wood ash 2. a concentrated solution of sodium hydroxide or potassium hydroxide n. […]
[lahy-jee-id, lahy-jee-id] /laɪˈdʒi ɪd, ˈlaɪ dʒi ɪd/ noun 1. Also called lygaeid bug, lygus bug [lahy-guh s] /ˈlaɪ gəs/ (Show IPA). any of numerous, often brightly marked bugs of the family Lygaeidae, which feed on the juices of plants in both the larval and adult stages and are important pests of cultivated crops and some […]
[lahy-ing] /ˈlaɪ ɪŋ/ noun 1. the telling of , or false statements; untruthfulness: From boyhood, he has never been good at lying. Synonyms: falsehood, falsity, mendacity, prevarication. Antonyms: truth, veracity. adjective 2. telling or containing lies; deliberately untruthful; deceitful; false: a lying report. Synonyms: deceptive, misleading, mendacious, fallacious; sham, counterfeit. Antonyms: true, candid, actual, correct, […]
[lahy] /laɪ/ verb (used without object), lay, lain, lying. 1. to be in a horizontal, recumbent, or prostrate position, as on a bed or the ground; recline. Antonyms: stand. 2. (of objects) to rest in a horizontal or flat position: The book lies on the table. Antonyms: stand. 3. to be or remain in a […]