English This entry needs a photograph or drawing for illustration. Please try to find a suitable image on Wikimedia Commons or upload one there yourself! English Wikipedia has an article on:sandwormWikipedia Etymology From sand + worm. Noun sandworm (plural sandworms) (British) A lugworm, of species Arenicola marina. (US) A clam worm or ragworm, of species Alitta virens. Hookworm larvae, especially of Ancylostoma braziliense, which cause cutaneous larva migrans. A chigoe, a flea of species Tunga penetrans. Anagrams swordman, wordsman Wikiwand - on Seamless Wikipedia browsing. On steroids.