(Encyclopedia) catatoniacatatoniakătˌətōˈnēə [key], mental state generally characterized by statuesque posturing, muscular immobility, mutism, and apparent stupor. The muscles are held in a pliant…
(Encyclopedia) surface tension, tendency of liquids to reduce their exposed surface to the smallest possible area. A drop of water, for example, tends to assume the shape of a sphere. The phenomenon…
(Encyclopedia) UdaipurUdaipur&oomacr;dĭp&oobreve;rˈ, &oomacr;dīˈp&oobreve;r [key] or MewarUdaipurmāwärˈ [key], city and former princely state, now part of Rajasthan state, NW India.…
(Encyclopedia) ultimatumultimatumŭlˌtĭmāˈtəm [key], in international law, final, definitive terms submitted by one disputant nation to the other for immediate acceptance or rejection. Since refusal…
(Encyclopedia) river blindness or onchocerciasis, disease caused by the parasitic nematode worm Onchocerca volvulus. The worm larvae are transmitted by the bites of blackflies (genus Simulium) that…
rock group Founded after the 1994 breakup of Uncle Tupelo and including four of that group's original members, Wilco (1994–present) has carried on in Uncle Tupelo's alternative-country-rock hybrid…
The Far Corners of the Earth: The Final Four LaborsClassical MythologyThe Labors of HeraclesTraining a HeroBeastly Chores: The First Four LaborsEven More Beastly Chores: The Second Four LaborsThe Far…
(Encyclopedia) flerovium, artificially produced radioactive chemical element; symbol Fl; at. no. 114; mass number of most stable isotope 289; m.p., b.p., sp. gr., and valence unknown. Situated in…
(Encyclopedia) ore, metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to…
