echolocation

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• Echolocation — Écholocation Principe de cartographie bathymétrique par écho sondeur L écholocation consiste à envoyer des sons et à écouter leur écho pour localiser et dans une moindre mesure d identifier les éléments désirés. Sommaire …   Wikipédia en Français

• ÉCHOLOCATION — Mécanisme biologique d’orientation et de guidage comparable au sonar, l’écholocation permet à un animal (chauve souris, marsouin, etc.) de localiser par l’audition tout objet, obstacle ou proie, qui réfléchit les vibrations sonores émises par… …   Encyclopédie Universelle

• Echolocation — may refer to:* Acoustic location, the general use of sound to locate objects * Animal echolocation, non human animals emitting sound waves and listening to the echo in order to locate objects or navigate * Human echolocation, the use by people of …   Wikipedia

• echolocation — 1944, from ECHO (Cf. echo) + LOCATION (Cf. location) …   Etymology dictionary

• echolocation — ► NOUN ▪ the location of objects by reflected sound, in particular as used by animals such as dolphins and bats …   English terms dictionary

• echolocation — [ek′ō lō kā΄shən] n. the determination, as by a bat, of the position of an object by the emission of sound waves which are reflected back to the sender as echoes echolocate vt., vi. echolocated, echolocating …   English World dictionary

• echolocation — /ek oh loh kay sheuhn/, n. 1. the general method of locating objects by determining the time for an echo to return and the direction from which it returns, as by radar or sonar. 2. Zool. the sonarlike system used by dolphins, bats, and other… …   Universalium

• echolocation — [[t]e̱koʊloʊke͟ɪʃ(ə)n[/t]] also echo location N UNCOUNT Echolocation is a system used by some animals to determine the position of an object by measuring how long it takes for an echo to return from the object. [TECHNICAL] Most bats navigate by… …   English dictionary

• echolocation — noun Date: circa 1944 a physiological process for locating distant or invisible objects (as prey) by sound waves reflected back to the emitter (as a bat) from the objects …   New Collegiate Dictionary

• echolocation — Term applied to the method by which bats direct their flight and avoid solid objects. The creatures emit high pitched cries that, though inaudible to human ears, are heard by the bats themselves as reflected sounds (echoes) from objects in their… …   Medical dictionary