|
|
 |
|
|
|
|
| so·nar [ sṓ nr ] (plural so·nars) |
noun |
|
| Definition: |
| |
1. system for detecting underwater objects: a system that determines the position of unseen underwater objects by transmitting sound waves and measuring the time it takes for their echo to return after hitting the object
|
2. sonar device: a device that uses sonar
|
| [Mid-20th century. Acronym <sound navigation ranging, after radar] |
|
|
|
