pinger Definition

sonar, hydrophone, transmitter, transponder, geophone, directional antenna, bathyscaph, skimmer, recorders, trotline, echo sounder, gunnel, bobby pin, doohickey, lavalier, carabineer, submersible, alvei, towline, vernier, spadefish, davit, maccheroni, blackfin, threadfin, fluorometer, darning needle, bimini, retroreflector, leatherback turtle, basking shark, neckband, plumb bob, ocean sunfish, overhand knot, lake okeechobee, coelacanth, pigfish, lavaliere, karabiner, adipose fin, snell, dorsal fin, razorbills, pulser, planktonic algae, backcast, queenfish, variable resistor, humuhumunukunukuapuaa, macartney, seabed, hammerhead shark, indri, flotation device, golden shiner, bathyscaphe, buoys, croakers, pogy, multimeter, allen wrench, stud finder, surfperch, needlenose pliers, gyrocompass, centerboard, hawser, blacktip shark, hygrometer, pyrometer, gunwale, warmouth, gudgeon, distress signal, drogue, sandbar shark, tuamotu archipelago, greenling, bucktail, furling, spool, altimeter, spile, adjustable wrench, sonde, cuvette, subantarctic, retractor, strain gauge, inclinometer, thoracoscope, soliton, minisub, goatfish, solent, beaked whale, boombox, cassette deck, thimble,