gyro horizon
         n 1: a navigational instrument based on a gyroscope; it
               artificially provides a simulated horizon for the pilot
               [syn: {artificial horizon}, {gyro horizon}, {flight
               indicator}]

English Dictionary: gyro horizon	by the DICT Development Group
From U.S. Gazetteer (1990) [gazetteer]:
Greer County, OK (county, FIPS 55)       Location: 34.93090 N, 99.55769 W       Population (1990): 6559 (3126 housing units)       Area: 1656.1 sq km (land), 11.2 sq km (water)
From U.S. Gazetteer (1990) [gazetteer]:
Greers Ferry, AR (city, FIPS 28810)       Location: 35.56777 N, 92.16916 W       Population (1990): 724 (527 housing units)       Area: 19.1 sq km (land), 0.0 sq km (water)       Zip code(s): 72067