from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An instrument used to record very small changes in atmospheric pressure.
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument for recording minor fluctuations of atmospheric pressure, as opposed to general barometric surges.
from The Century Dictionary and Cyclopedia
- n. A barograph designed to record minute and rapid variations in the pressure of the atmosphere.
Sorry, no etymologies found.