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spotted lanternfly
(Encyclopedia)spotted lanternfly, common name for a planthopper, Lycorma delicatula, an insect that is native to China, India, and Vietnam, and is an introduced agricultural pest in Korea and the United States. The...penicillin
(Encyclopedia)penicillin, any of a group of chemically similar substances obtained from molds of the genus Penicillium that were the first antibiotic agents to be used successfully in the treatment of bacterial inf...Moltke, Helmuth Karl Bernhard, Graf von
(Encyclopedia)Moltke, Helmuth Karl Bernhard, Graf von, 1800–1891, Prussian field marshal. Following his graduation from the Royal Military Academy of Denmark, he entered the Danish service, but resigned his commi...food additives
(Encyclopedia)food additives, substances added to foods by manufacturers to prevent spoilage or to enhance appearance, taste, texture, or nutritive value. By quantity, the most common food additives are flavorings,...pewter
(Encyclopedia)pewter, any of a number of ductile, silver-white alloys consisting principally of tin. The properties vary with the percentage of tin and the nature of the added materials. Lead, when added, imparts a...Llywelyn ap Iorwerth
(Encyclopedia)Llywelyn or Llewelyn ap Iorwerth , lo͞oĕlˈĭn [key] (Llywelyn the Great), 1173–1240, Welsh prince; grandson of Owain Gwynedd. He first proved his capacity by wresting (1194) N Wales from his unc...hardening
(Encyclopedia)hardening, in metallurgy, treatment of metals to increase their resistance to penetration. A metal is harder when it has small grains, which result when the metal is cooled rapidly. Sometimes small ar...Bakelite
(Encyclopedia)Bakelite bāˈkəlīt [key] [for its inventor, L. H. Baekeland], synthetic thermosetting resin. It has been widely used both alone, to form whole objects, and in combination with other materials, as a...bronze sculpture
(Encyclopedia)bronze sculpture. Bronze is ideal for casting art works; it flows into all crevices of a mold, thus perfectly reproducing every detail of the most delicately modeled sculpture. It is malleable beneath...Roland
(Encyclopedia)Roland rōˈlənd [key], the great French hero of the medieval Charlemagne cycle of chansons de geste, immortalized in the Chanson de Roland (11th or 12th cent.). Existence of an early Roland poem is ...Browse by Subject
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