mean low water


Also found in: Acronyms.

mean low water

[′mēn ′lō ′wȯd·ər]
(oceanography)
The average height of all low waters recorded at a given place over a 19-year period.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Dipping farther than the mean low water upon which depth charts are based, these "negative lows" or "moon tides" will suck all the water off a flat that supported boat traffic 12 hours earlier.
Many days show low tides at a foot below mean low water. This low water presents a good opportunity to get out and explore.