(Encyclopedia) free radical, in chemistry, a molecule or atom that contains an unpaired electron but is neither positively nor negatively charged. Free radicals are usually highly reactive and…
(Encyclopedia) guilt, in psychology, a term denoting an unpleasant feeling associated with unfulfilled wishes. Sigmund Freud initially contended that sexual drives produce sense of guilt in the…
(Encyclopedia) guide dog, a dog trained to lead a blind person. The first school for training such dogs was established by the German government after World War I for the benefit of blinded veterans…
(Encyclopedia) ibuprofenibuprofenīˈby&oomacr;prōˌfən [key], nonsteroidal anti-inflammatory drug (NSAID) that reduces pain, fever, and inflammation. Along with naproxen and ketoprofen, ibuprofen…
(Encyclopedia) antisense, DNA or RNA manipulated in a laboratory so that its components (nucleotides) form a complementary copy of normal, or “sense,” messenger RNA (mRNA; see nucleic acid).…
(Encyclopedia) de La Renta, Oscar (Óscar Arístides de la Renta Fiallo)de La Renta, Oscardə lə räNˈtə, rĕnˈtə [key], 1932–2014, Dominican-American fashion designer, b. Santo Domingo, Dominican…
(Encyclopedia) Dubuque, JulienDubuque, Juliendəby&oomacr;kˈ [key], 1762–1810, pioneer settler of Iowa, b. Nicolet co., Que. Setting out at a young age for the West, Dubuque reached Prairie du…
