- Any of numerous species of sedentary, solitary or colonial, marine worms that spend their entire life in a tube made from special secretions or from sand grains glued together.Found worldwide, tube worms range from less than an inch (25 mm) to more than 20 ft (6 m) long. The bottom of the tube is attached to the seafloor; the mouth and tentacles are at the upper, open end. The worm breathes through gills, the tentacles, or the body wall. The tentacles, variously arranged, are used to filter-feed aquatic plants and animals. Tube worms occur in the annelid class Polychaeta and in the phyla Phoronida and Pogonophora. Many, mostly unnamed, forms live in deep-ocean vent communities.
* * *▪ biologyany of a number of tube-dwelling marine worms belonging to the annelid class Polychaeta (see polychaete; feather-duster worm; tentacle worm). Other tube-dwelling worms include the horseshoe worm (q.v.; phylum Phoronida) and the beardworm (q.v.; phylum Pogonophora).
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tube|worm — «TOOB WURM, TYOOB », noun. any worm of a group of annelids that live in hard, flexible tubes. Some worms make these tubes of their own calcareous secretions; others glue together sandy or stony grit … Useful english dictionary
tube worm — I. noun : an annelid worm (as a serpulid) building and living in a tube II. noun : a pogonophoran and especially an extremely large one that is found near deep ocean hydrothermal vents * * * tube worm noun A worm that makes a tube to inhabit • •… … Useful english dictionary
Tube worm — The name tube worm may refer to any of a number of unrelated tube dwellingworm like invertebrates. These include chiefly various polychaetes, specifically the family Siboglinidae (beard worms), Serpulidae, and related families of the order… … Wikipedia
tube worm — noun a fan worm or other marine worm which lives in a tube like structure … English new terms dictionary
tube worm — noun Date: circa 1819 a worm that lives in a tube: as a. any of various polychaetes or oligochaetes b. (1) pogonophoran (2) vestimentiferan … New Collegiate Dictionary
tube worm — /ˈtjub wɜm/ (say tyoohb werm) noun any polychaete worm which constructs and inhabits a protective tube. Also, tubeworm … Australian English dictionary
Giant tube worm — Scientific classification Kingdom: Animalia Phylum … Wikipedia
giant tube worm — noun Riftia pachyptila, a large marine invertebrate found around the floor of the Pacific Ocean … Wiktionary
worm — wormer, n. wormlike, wormish, adj. /werrm/, n. 1. Zool. any of numerous long, slender, soft bodied, legless, bilaterally symmetrical invertebrates, including the flatworms, roundworms, acanthocephalans, nemerteans, gordiaceans, and annelids. 2.… … Universalium
tube — tubeless, adj. tubelike, adj. /toohb, tyoohb/, n., v., tubed, tubing. n. 1. a hollow, usually cylindrical body of metal, glass, rubber, or other material, used esp. for conveying or containing liquids or gases. 2. a small, collapsible, cylinder… … Universalium