Secchi Disk Definition

sekē
noun
A circular, white or colored disk lowered into a body of water to estimate the clarity of the water by measuring the depth at which it disappears.
Webster's New World
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Other Word Forms of Secchi Disk

Noun

Singular:
Secchi disk
Plural:
secchi-disks

Origin of Secchi Disk

  • After Pietro Angelo Secchi (1818–1878), Italian astronomer hired to test such a disk

    From American Heritage Dictionary of the English Language, 5th Edition

  • Secchi + disk

    From Wiktionary

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Secchi disk
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