drainpipe vs storm drain

drainpipe

noun
  • A conduit for carrying rainwater or flood water. 

  • A pipe that carries wastewater from a bathtub, shower, sink, etc. 

  • A pipe that is part of a device or appliance for carrying away waste fluid. 

  • The type of pipe that is used to construct a drainpipe. 

  • A type of form-fitting trousers with highly tapered legs. 

  • A verticle pipe carrying water from the roof gutter down the side of a building; downspout. 

storm drain

noun
  • An access point or conduit for rainwater that drains directly downstream in a (drainage) basin without going through sewers or water treatment in order to prevent or belay floods 

How often have the words drainpipe and storm drain occurred in a corpus of books? (source: Google Ngram Viewer )