fathom

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fathom

1. a unit of length equal to six feet (1.829 metres), used to measure depths of water
2. Forestry a unit of volume equal to six cubic feet, used for measuring timber
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

fathom

[′fath·əm]
(oceanography)
The common unit of depth in the ocean, equal to 6 feet (1.8288 meters).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Jumpstart your mornings with Anjan & Meghana at 6AM onwards on Josh 97.8 FM, enjoy the crazy antics of Eyhab and Lara from 6am on Hayat 95.6 FM and wake up to the Rainbow Morning Show with Aroma on HUM 106.2 FM.
The requirements are as follows: Level 1--two years of FM experience; Level 2--four years of FM experience, two of which must be within DoD FM; and Level 3--eight years of FM experience, six of which must be within DoD FM. Once certification is achieved at each of the levels, participation in continuing professional education courses and/or training will be required every two years to maintain the certification.
In 2009, the brand was taken national in a first of its kind rebranding exercise, in which 38 stations under the S FM brand were rebranded to Red FM.