1. the pressure exerted by the earth's atmosphere at any given point. 2. a value of standard or normal atmospheric pressure, equivalent to the pressure exerted by a column of mercury 29.92 in. (760 mm) high, or 1013 millibars (101.3 kilopascals). Also called barometric pressure.[1655â65].. a value of standard or normal atmospheric pressure, equivalent to the pressure exerted by a column of mercury 29.92 in. (760 mm) high, or 1013 millibars (101.3 kilopascals). Also called barometric pressure. [1655â65].
Trotwood is a city in Montgomery County, Ohio, United States. The population was 27,431 at the 2010 census. It is part of the Dayton Metropolitan Statistical Area. The city is served by the Trotwood-Madison City School District. It is named for Betsy Trotwood, the Charles Dickens character. Trotwood is located at 39Â°47â²41â³N 84Â°17â²24â³W / 39.79472Â°N 84.29Â°W / 39.79472; -84.29 (39.794807, -84.289892).
Ross County is a county located in the Appalachian region of the U.S. state of Ohio. As of the 2010 census, the population was 78,064. Its county seat is Chillicothe, the first and third capital of Ohio. Established on August 20, 1798, the county is named for Federalist Senator James Ross of Pennsylvania. Ross County comprises the Chillicothe, OH Micropolitan Statistical Area, which is also included in the Columbus-Marion-Zanesville, OH Combined Statistical Area.