sentences:  Ridgling
  
  A ridgling (also spelled ridgeling), or rig, is a cryptorchid; a male animal with one or both testicles undescended, usually describing a ram, bull, or male horse, but cryptorchidism also can be an issue in dogs and cats.Because the heat inside the body is too high for sperm to survive, an undescended testicle is non-functional.