from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A sensory system in certain animals, such as bats and dolphins, in which usually high-pitched sounds are emitted and their echoes interpreted to determine the direction and distance of objects.
- n. Electronics A process for determining the location of objects by emitting sound waves and analyzing the waves reflected back to the sender by the object.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The use of echoes to detect objects as observed in bats and other natural creatures. Also known as biosonar.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. determining the location of something by measuring the time it takes for an echo to return from it
Sorry, no etymologies found.