Fthm (Noun)
Meaning 1
A linear unit of measurement (equal to 6 feet) for water depth.
Classification
Nouns denoting quantities and units of measure.
Examples
- The vessel's maximum draft is 3.5 fthms below the waterline to ensure safe navigation through shallow waters.
- The water depth gauge indicated a reading of 2 fthms, clearing the ship's keel from the ocean floor.
- During the pre-dredging assessment, the surveyors recorded the average depth of the channel as 6.2 fthms.
- Marine charts explicitly listed all waterways with depths under 1 fthm due to safety concerns for smaller boats.
- Clearance rules specified that cargo vessels crossing the narrow passage should not exceed a depth of 4 fthms.
Synonyms
Hypernyms
Meaning 2
(mining) a unit of volume (equal to 6 cubic feet) used in measuring bodies of ore.
Classification
Nouns denoting quantities and units of measure.
Examples
- The mining calculations required conversion of cubic measurements to fthm for accurate ore body assessments.
- A fthm of ore is typically analyzed for mineral content before further processing.
- The geologists estimated the rich vein of ore to be around 50,000 fthm in total volume.
- Extracting a single fthm of the precious metal ore proved be more challenging than expected.
- Miners carefully extracted the ore in sections measured in fthm to track overall production progress.