Definition of starfish in US English:


nounPlural starfishes

  • A marine echinoderm with five or more radiating arms. The undersides of the arms bear tube feet for locomotion and, in predatory species, for opening the shells of mollusks.

    Class Asteroidea

    • ‘Scattered on the cloth are pinecones and seashells, a sand dollar, a starfish, a sea urchin.’
    • ‘Thus far there are no serious signs of predation by crabs or starfish.’
    • ‘Sea urchins and starfish are the last and most obvious group of marine creatures lurking to catch unwary and clumsy humans.’
    • ‘Growth on the hull of the wreck consists largely of small shells with grazing sea urchins and starfish.’
    • ‘Echinoderms include the sea urchins and starfish.’