Search

Search results

Displaying 481 - 490

Assyrian art

(Encyclopedia) Assyrian art. An Assyrian artistic style distinct from that of Babylonian art (see Sumerian and Babylonian art), which was the dominant contemporary art in Mesopotamia, began to emerge…

luminescence

(Encyclopedia) luminescence, general term applied to all forms of cool light, i.e., light emitted by sources other than a hot, incandescent body, such as a blackbody radiator. Luminescence is caused…

lyric

(Encyclopedia) lyric, in ancient Greece, a poem accompanied by a musical instrument, usually a lyre. Although the word is still often used to refer to the songlike quality in poetry, it is more…

dengue fever

(Encyclopedia) dengue feverdengue feverdĕngˈgē, –gā [key], acute infectious disease caused by four closely related viruses and transmitted by the bite of the female Aedes mosquito; it is also known…

Hungarian language

(Encyclopedia) Hungarian language, also called Magyar, member of the Ugric group of the Finno-Ugric languages. These languages form a subdivision of the Uralic subfamily of the Ural-Altaic family of…

hydrate

(Encyclopedia) hydratehydratehīˈdrāt [key], chemical compound that contains water. A common hydrate is the familiar blue vitriol, a crystalline form of cupric sulfate. Chemically, it is cupric…

pyrite

(Encyclopedia) pyritepyritepīˈrīt [key] or iron pyritesiron pyritespīrīˈtēz, pə–, pīˈrīts [key], pale brass-yellow mineral, the bisulfide of iron, FeS2. It occurs most commonly in crystals (belonging…

robotics

(Encyclopedia) robotics, science and technology of general purpose, programmable machine systems. Contrary to the popular fiction image of robots as ambulatory machines of human appearance capable of…

Rotifera

(Encyclopedia) Rotifera, phylum of predominantly free-living, microscopic, aquatic or semiterrestrial pseudocoelomates. Each rotifer has a head bearing a crown of cilia, the corona, at the anterior…

plasma

(Encyclopedia) plasma, in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion). It is electrically conductive and is…