D defs.my
Entry 2 senses Webster, 1913

Towboat

/tōb'-ōtˌ/ · Tow·boat · IPA /ˈtoʊˌboʊt/
01 n. A vessel constructed for being towed, as a canal boat.
  1. 1.
    A vessel constructed for being towed, as a canal boat.
  2. 2.
    A steamer used for towing other vessels; a tug.