Definition of palolo worm in US English:

palolo worm


  • A marine bristle worm which swarms in response to changes in light intensity, particularly that of the moon. The worm's posterior segments detach themselves and swim to the surface where the reproductive cells are released into the sea.

    Several species in Eunicidae and other families, in particular the Samoan palolo worm (Palola or 'Eunice' viridis), which occurs on South Pacific reefs

    • ‘The palolo worm makes its home, according to Anja Schulze of the Smithsonian Marine Station, in the shallow reef, where it uses its sizeable jaws to dig itself a burrow in the limestone substrate.’
    • ‘Palolo worms from the South Pacific are relatively well studied.’
    • ‘All around them palolo worms are thrashing in vast numbers.’


Late 19th century: palolo from Samoan or Tongan.


palolo worm

/pəˈlōlō ˌwərm/