from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A photoelectric instrument for ascertaining cloud heights.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A device that measures the altitude of the cloud base, especially above an airfield


ceil(ing) + -meter.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • The British also had developed a device called a ceilometer, which triangulated ultraviolet rays to calculate how low clouds were over the three Berlin airports.

    Daring Young Men

  • Vaisala launches new ceilometer for high range cloud detection

    WebWire | Recent Headlines

  • The Remote Miniature Weather Station (RMWS), from System Innovations, is an air-droppable version with a lightweight, expendable and modular system comprised of two components; a meteorological (MET) sensor and a ceilometer (cloud ceiling height) with limited MET.

    Citizendium, the Citizens' Compendium - Recent changes [en]


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