| Term | Definition |
| metric | related to the system of meters |
| symmetric | having corresponding parts the same in size and form |
| biometry | statistical analysis of biological observations and phenomena |
| metrology | science of weights and measures |
| optometry | testing of eyes to measure vision |
| psychometric | having corresponding parts the same in size and form |
| somatometry | related to body measurement |
| metronome | device used to measure rhythm |
| bronchogram | x-ray of the lungs |
| bronchitis | inflammation of the air passages |
| bronchophony | sound of the voice heard through the stethoscope over healthy lungs |
| bronchogenic | originating from the air passages of the lungs |
| bronchoscope | thin tube which enables a doctor to see into the airways |