Secchi disc

noun
Sec·​chi disc | \ ˈsekē- \

Definition of Secchi disc

: a reflective disc lowered into a body of water to permit measurement of the relative transparency of the water by recording the depth at which the disc is no longer visible

History and Etymology for Secchi disc

after Angelo Secchi †1878 Italian astronomer

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Dictionary Entries Near Secchi disc

secateur

Secchi disc

secco

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Cite this Entry

“Secchi disc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Secchi%20disc. Accessed 29 Sep. 2022.

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