Usage examples for pachyderm:

• Now as the man could run fast and from time to time another took his place and the elephant had to use a lot of effort in turning corners, it soon became evident that the big pachyderm was tiring of the exercise. "The Boy Aviators in Africa" – Captain Wilbur Lawton

• Look, pachyderm for all we know, these Cascellans think the proper way to greet visitors is to chop off their heads and stuff them with green apples. "Warrior Race" – Robert Sheckley