fthm

A noun referring to a unit of length equal to six feet, primarily used to measure the depth of water; also a unit of volume equal to six cubic feet, used in mining to measure bodies of ore.

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1. Unit of depth B1 formal technical

   A linear unit of measurement equal to 6 feet, used primarily for measuring water depth.

   • The ship sank in 20 fthm of water.
   • The diver descended to a depth of 15 fthm.
   • They marked the channel at 8 fthm on the chart.

   🌐القامة البحرية

   المرادفات: fathom

2. Unit of volume (mining) C1 formal technical

   A unit of volume equal to 6 cubic feet, used in mining to measure bodies of ore.

   • The vein contained over 100 fthm of ore.
   • Miners calculated the yield at 50 fthm per shift.
   • The survey reported a promising 30 fthm deposit.

   🌐فتهم (وحدة حجم)