acoustic device

Definitions of acoustic device

n a device for amplifying or transmitting sound

Liberty Bell
the bell of Independence Hall; rung 8 July 1776 to announce the signing of the Declaration of Independence
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a hollow device made of metal that makes a ringing sound when struck
a device for imitating a birdcall
ear trumpet, hearing aid
a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person
a cone-shaped acoustic device held to the mouth to intensify and direct the human voice
an acoustic device; the part of a telephone into which a person speaks
a device used to soften the tone of a musical instrument
muffler, silencer
a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
an acoustic device producing a loud often wailing sound as a signal or warning
acoustic device consisting of two paddles hinged together; used by an actor to make a loud noise without inflicting injury when striking someone
speaking trumpet
a trumpet-shaped acoustic device to intensify and direct the human voice; formerly held to the ear by a hard-of-hearing person
acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound
boat whistle
a whistle on a boat that is sounded as a warning
church bell
a bell in a church tower (usually sounded to summon people to church)
a bell hung around the neck of cow so that the cow can be easily located
death bell, death knell
a bell rung to announce a death
dinner bell
a bell rung to announce that dinner has been served
electric bell
a bell activated by the magnetic effect of an electric current
factory whistle
a whistle at a factory that is sounded to announce times for starting or stopping work
fire bell
a bell rung to give a fire alarm
school bell
a bell rung to announce beginning or ending of class
sheep bell
a bell hung round the neck of a sheep so that the sheep can be easily located
shop bell
a bell attached to the door of a small shop; warns the proprietor that a customer has entered the shop
cascabel, sleigh bell
a bell attached to a sleigh, or to the harness of a horse that is pulling a sleigh
sordino, sourdine
a mute for a violin
steam whistle
a whistle in which the sound is produced by steam; usually attached to a steam boiler
tocsin, warning bell
a bell used to sound an alarm
Type of:
an instrumentality invented for a particular purpose

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