from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An instrument for measuring the degree and nature of respiration.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A device used to measure the rate of respiration of plants
from The Century Dictionary and Cyclopedia
- n. An instrument which is used to determine the condition of the respiration.
- n. An apparatus for supplying air to a diver under water by means of a supply of compressed oxygen, which is caused to combine in due proportion with nitrogen chemically filtered from the air expired from his lungs in breathing.
Sorry, no etymologies found.
This quantity of fuel can be measured directly by a respirometer, a device that measures the rate at which oxygen is combined with food to produce carbon dioxide and work.
To get back to my thesis research, the pieces of equipment that I have been using in the research are fairly standard in physiological research: a Beckman spectrophotometer, a Coleman photometer, a van Slyke amino nitrogen apparatus, a Warburg respirometer, pH meters, Kjeldahls,
Photo of blue crab being monitored for metabolism using a respirometer, courtesy of Louis and Karen Burnett.