| A | B |
|---|
| astrometer | instrument for comparing the amount of light of stars |
| asymmetrical | two sideas that are NOT the same |
| biometrics | recording part of the body to identify a person (fingerprint, retinal scan) |
| diameter | a straight line that crosses the center of a circle |
| geometry | mathematics of shapes, lines, angles, surfaces |
| meter | measure of length in the metric system; about 1 yard |
| metrics | related to the metric system |
| metrologist | a person skilled in exact precise measure |
| metronome | a device that repeats a sound to show the speed of music |
| optometry | science of examining eyes |
| parameter | limits of how something can be done |
| perimeter | the distance around an area |
