from the GNU version of the Collaborative International Dictionary of English

  • n. A nail one or two inches long, of iron, brass, tin, or tinner iron, with a hole through the flattened head, used to mark stations in underground surveying.


Sorry, no etymologies found.



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  • 'Company personnel will provide survey mark-up for drill hole bearing (azimuth) lines comprising labeled spads for front and back sights at drill station locations prior to drilling and collar surveys for completed drill holes.'

    - Excerpt from contract for diamond drilling

    See Free Dictionary link for definition.

    July 17, 2009

  • B.B.C. News: 'So what do special advisers do and is the characterisation fair?

    'The code of conduct spells out the job description. They are employed as temporary civil servants but do not have to be politically impartial like their civil service colleagues.

    'They link together the minister, the party and the department. They are also the bridge between the neutral civil service and the politicians.

    'One former "spad" - as they are known around Westminster - from the Blair years told me that they bring a political antenna to proceedings that essentially protects the civil servants by maintaining their independence.'

    April 15, 2009