| Word | Definitions | Synonyms |
|---|---|---|
| ping | (noun) a sharp high-pitched resonant sound (as of a sonar echo or a bullet striking metal) | - |
| pinger | (noun) a pulse generator used for echo sounding in sonar | - |
| pinguecula | (noun) a slightly elevated elastic tissue deposit in the conjunctiva that may extend to the cornea but does not cover it | - |