ceilometer

noun

ceil·​om·​e·​ter sē-ˈlä-mə-tər How to pronounce ceilometer (audio)
: a photoelectric instrument for determining by triangulation the height of the cloud ceiling above the earth

Word History

Etymology

ceiling + -o- + -meter

First Known Use

1943, in the meaning defined above

Time Traveler
The first known use of ceilometer was in 1943

Dictionary Entries Near ceilometer

Cite this Entry

“Ceilometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ceilometer. Accessed 1 Mar. 2024.

More from Merriam-Webster on ceilometer

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!