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hydrocarbon
(Encyclopedia) hydrocarbonhydrocarbonhīˌdrōkärˈbən [key], any organic compound composed solely of the elements hydrogen and carbon. The hydrocarbons differ both in the total number of carbon and…Columbus
(Encyclopedia) Columbus. 1 City (2020 pop. 206,922), seat of Muscogee co., W Ga., at the head of navigation on the Chattahoochee River; settled and inc…atomic weight
(Encyclopedia) atomic weight, mean (weighted average) of the masses of all the naturally occurring isotopes of a chemical element, as contrasted with atomic mass, which is the mass of any individual…insurance
(Encyclopedia) insurance or assurance, device for indemnifying or guaranteeing an individual against loss. Reimbursement is made from a fund to which many individuals exposed to the same risk have…Ellwood City
(Encyclopedia) Ellwood City, industrial borough (2020 pop. 7,166), Beaver and Lawrence counties, W central Pa., near the Ohio line; inc. 1892. It has…Jacobs, William Wymark
(Encyclopedia) Jacobs, William Wymark, 1863–1943, English author. His humorous sea stories were first collected in Many Cargoes (1896). Of his several horror stories, the most famous is “The Monkey's…Piedmont, city, United States
(Encyclopedia) Piedmont, city (1990 pop. 10,602), Alameda co., W Calif., a suburb of Oakland; inc. 1907. It is a hilly, residential city. Many of its homes enjoy a spectacular view of the San…Cockpit Country
(Encyclopedia) Cockpit Country, hilly region on the plateau of Jamaica, c.200 sq mi (520 sq km), W central Jamaica. Composed of limestone rock, the region has many sink holes, caverns, and…Edwardsville
(Encyclopedia) Edwardsville, city (2020 pop. 26,808), seat of Madison co., SW Ill.; inc. 1819. It is mainly residential, with many citizens commuting…Wellesley
(Encyclopedia) Wellesley, town (1990 pop. 26,615), Norfolk co., E Mass., a residential suburb SW of Boston; settled 1660, inc. 1881. Its many educational institutions include several private…