chemical sense
121Entheogen — An entheogen, in the strictest sense, is a psychoactive substance used in a religious or shamanic (or entheogenic) context. Entheogens generally come from plant sources which contain molecules closely related to endogenous neurochemicals. They… …
122Italy — /it l ee/, n. a republic in S Europe, comprising a peninsula S of the Alps, and Sicily, Sardinia, Elba, and other smaller islands: a kingdom 1870 1946. 57,534,088; 116,294 sq. mi. (301,200 sq. km). Cap.: Rome. Italian, Italia. * * * Italy… …
123rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …
124Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …
125transuranium element — Any of the chemical elements after uranium in the periodic table (with atomic numbers greater than 92). All are radioactive (see radioactivity), with half lives ranging from tens of millions of years to fractions of a millisecond. Only two,… …
126science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… …
127Alchemy — Alchemist redirects here. For other uses, see Alchemist (disambiguation). For other uses, see Alchemy (disambiguation). Page from alchemic treatise of Ramon Llull, 16th century Alchemy is an influential philosophical tradition whose early… …
128Lysergic acid diethylamide — LSD redirects here. For other uses, see LSD (disambiguation). LSD 25 redirects here. For the dock landing ship, see USS San Marcos (LSD 25). For the Fringe episode, see Lysergic Acid Diethylamide (Fringe). Lysergic acid diethylamide …
