[toob-wurm, tyoob-] 
| any of various marine worms that produce and inhabit a tube, some being adapted to a hydrothermal vent environment. |
| tube·worm (tōōb'wûrm', tyōōb'-) n. Any of various chiefly marine worms or wormlike invertebrates of the phyla Annelida, Pogonophora, Phoronida, or Vestimentifera, living within tubular cases made of mineral or chitinous secretions or of aggregated grit. |
