Agoraphobia (from Greek αγορά, "gathering place"; and φόβος/φοβία, -phobia) is an anxiety disorder characterized by anxiety in situations where the sufferer perceives certain environments as dangerous or uncomfortable, often due to the environment's vast openness or crowdedness. These situations include, but are not limited to, wide-open spaces, as well as uncontrollable social situations such as the possibility of being met in shopping malls, airports, and on bridges. Agoraphobia is defined within the DSM-IV TR as a subset of panic disorder, involving the fear of incurring a panic atta...

{| |} The Boeing CH-47 Chinook is an American twin-engine, tandem rotor heavy-lift helicopter. Its primary roles are troop movement, artillery placement and battlefield resupply. It has a wide loading ramp at the rear of the fuselage and three external-cargo hooks. With a top speed of 170 knots (196 mph, 315 km/h) the helicopter is faster than contemporary utility and attack helicopters of the 1960s. The CH-47 is among the heaviest lifting Western helicopters. Its name is from the Native American Chinook people. The Chinook was designed and initially produced by Boein...

Chinook winds , often called chinooks, commonly refers to foehn winds in the interior West of North America, where the Canadian Prairies and Great Plains meet various mountain ranges, although the original usage is in reference to wet, warm coastal winds in the Pacific Northwest of the United States of America. Chinook is claimed by popular folk-etymology to mean "eater", but it is really the name of the people in the region where the usage was first derived. The reference to a wind or weather system, simply "a Chinook", originally meant a warming wind from the ocean into the interior ...