Wiktionary
echolocator
n. 1 An organism capable of echolocation. 2 An organ that performs echolocation within an organism.
Usage examples of "echolocator".
The thumper’s echolocator showed a large area of very low density only a meter ahead.
The river dolphins that live in muddy water are probably the most skilled echolocators, but some open-sea dolphins have been shown in tests to be pretty good too.