noctiluca

/ˌnɑktɪˈlukə/
noun
  1. A type of tiny sea creature that glows in the dark, often seen in ocean water at night.
    • The boat's wake sparkled with noctiluca, making the ocean look like a starry sky.
    • We went kayaking at night and saw noctiluca glowing whenever we dipped our paddles.
    • Noctiluca is a plankton that creates beautiful blue-green light when disturbed.
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