| A | B |
|---|
| -meter, -metry | a metric unit of measure equal to one one- hundredth of a meter, equal to 0.3937 inches |
| geo-, ge- | ROOT earth, land, soil |
| geography | originally, writing about or describing all of the earth's surface features and related life geology |
| geometry | the branch of mathematics that studies points, lines, angles, and solids, originally because it was useful for measuring the earth |
| geomorphic | pertaining to or resembling the form or shape of the earth or its surface features |
| geothermal | pertaining to the internal heat of the earth |
| kilometer | a metric unit of measure equal to one thousand meters |
| centimeter | a metric unit of measure equal to one one- hundredth of a meter, equal to 0.3937 inches |
| odometer | an instrument to measure the distance traveled on a journey in a vehicle |
| peri- | ROOT around, near |
| perigee | the point at which an object orbiting the earth is nearest to the earth |
| perimeter | the measurement of the boundary around an area |
| period | an interval of time marking a "way around" or a repeated cycle of events |
| peripheral | pertaining to the external boundary carried around an object; of minor relevance |
| periscope | an instrument to view around |
| seismometer | an instrument used to measure the intensity of earthquakes |
| thermometer | an instrument to measure temperature |
