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Longhorn Cavern

(Encyclopedia)Longhorn Cavern, limestone cave, central Tex., at Burnet. On the northern edge of the Edwards Plateau, the cave (explored length c.8 mi/13 km) lies beneath a triangular ridge rising above the valley o...

Launcelot, Sir

(Encyclopedia)Launcelot, Sir lănˈsəlŏtˌ, lŏnˈ–, lônˈ– [key], in Arthurian legend, bravest and most celebrated knight at the court of King Arthur. He was kidnapped as an infant by the mysterious Lady of...

Mordred, Sir

(Encyclopedia)Mordred, Sir: see Arthurian legend. ...

Modred, Sir

(Encyclopedia)Modred, Sir: see Arthurian legend. ...

Gawain, Sir

(Encyclopedia)Gawain, Sir gäˈwān, –wĭn [key], one of the most popular heroes of Arthurian legend; nephew of King Arthur. He was regarded, particularly in the early romances, as the model of chivalry—pure, b...

Galahad, Sir

(Encyclopedia)Galahad, Sir gălˈəhădˌ [key], hero of Arthurian legend. He was the son of Launcelot and Elaine, the daughter of King Pelles. Because he was the noblest and purest of the knights of Christendom, h...

Pelleas, Sir

(Encyclopedia)Pelleas, Sir: see Arthurian legend. ...

Percivale, Sir

(Encyclopedia)Percivale, Sir: see Arthurian legend and Parsifal. ...

transplantation, medical

(Encyclopedia)transplantation, medical, surgical procedure by which a tissue or organ is removed and replaced by a corresponding part, usually from another part of the body or from another individual. A life-saving...

Lindsay, Sir David

(Encyclopedia)Lindsay or Lyndsay, Sir David both: lĭnˈzē [key], c.1490–c.1555, Scottish poet. He was a courtier and diplomat by profession. As a writer he was a harsh satirist and moralist who directed most of...