columnar+mass
61Trench warfare — is a form of warfare where both combatants have fortified positions and fighting lines are static. Trench warfare arose when a revolution in firepower was not matched by similar advances in mobility. The result was a slow and grueling form of… …
62Gastroesophageal reflux disease — Acid reflux redirects here. Acid reflux may also refer to Laryngopharyngeal reflux. Gastroesophageal reflux disease Classification and external resources ICD 10 K21 ICD 9 …
63Geology of the Yosemite area — The exposed geology of the Yosemite area includes primarily granitic rocks with some older metamorphic rock. The first rocks were laid down in Precambrian times, when the area around Yosemite National Park was on the edge of a very young North… …
64Germ layer — [ http://www.ncbi.nih.gov/About/primer/genetics cell.html NCBI] .] A germ layer is a collection of cells, formed during animal embryogenesis. Germ layers are particularly pronounced in the vertebrates; however, all animals more complex than… …
65List of cloud types — Clouds are formed in Earth s atmosphere when water evaporates into vapor from oceans, lakes, and ponds or by evapotranspiration over moist areas of Earth s land surface. The vapor rises up into colder areas of the atmosphere due to convective,… …
66Funerary art — Tomb of Philippe Pot, governor of Burgundy under Louis XI …
67Mongolia — /mong goh lee euh, mon /, n. 1. a region in Asia including Inner Mongolia of China and the Mongolian People s Republic. 2. Also, Nei Monggol. See Inner Mongolia. 3. Outer, former name of Mongolian People s Republic. * * * Mongolia Introduction… …
68tree — treelike, adj. /tree/, n., v., treed, treeing. n. 1. a plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground. 2. any of various shrubs,… …
69Tree — /tree/, n. Sir Herbert Beerbohm /bear bohm/, (Herbert Beerbohm), 1853 1917, English actor and theater manager; brother of Max Beerbohm. * * * I Woody perennial plant. Most trees have a single self supporting trunk containing woody tissues, and in …
70tumor — 1. Any swelling or tumefaction. 2. SYN: neoplasm. 3. One of the four signs of inflammation (t., calor, dolor, rubor) enunciated by Celsus. [L. t., a swelling] acinar cell t. a …
