noun ·see pepper.
2. piper ·noun one who plays on a pipe, or the like, ·esp. on a bagpipe.
3. piper ·noun a sea urchin (goniocidaris hystrix) having very long spines, native of both the american and european coasts.
4. piper ·noun a common european gurnard (trigla lyra), having a large head, with prominent nasal projection, and with large, sharp, opercular spines.