资料来源 : Webster's Revised Unabridged Dictionary (1913)

The gapes \The gapes\
      (a) A fit of yawning.
      (b) A disease of young poultry and other birds, attended
          with much gaping. It is caused by a parasitic nematode
          worm ({Syngamus trachealis}), in the windpipe, which
          obstructs the breathing. See {Gapeworm}.