| luminescent proteins | Proteins which are involved in the phenomenon of light emission in living systems. Included are the "enzymatic" and "non-enzymatic" types of system with or without the presence of oxygen or co-factors. (12 Dec 1998) |
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| epidemiologic measurements | <epidemiology> Statistical calculations on the occurrence of disease or other health-related conditions in defined populations. (12 Dec 1998) |
| lung volume measurements | Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle. (12 Dec 1998) |