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loudspeaker collapse: electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

earphone collapse: electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear; "it was not the typing but the earphones that she disliked"

tweeter collapse: a loudspeaker that reproduces higher audio frequency sounds; "the sound system had both tweeters and woofers"

cone collapse: any cone-shaped artifact; visual receptor cell sensitive to color; cone-shaped mass of ovule- or spore-bearing scales or bracts; a shape whose base is a circle and whose sides taper up to a point; make cone-shaped; "cone a tire"

speaker collapse: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous); "the speaker at commencement"; "an utterer of useful maxims"; the presiding officer of a deliberative assembly; "the leader of the majority party is the Speaker of the House of Representatives"

diaphragm collapse: a mechanical device in a camera that controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically"; electro-acoustic transducer that vibrates to receive or produce sound waves; a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix; (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration

horn collapse: one of the bony outgrowths on the heads of certain ungulates; any hard protuberance from the head of an organism that is similar to or suggestive of a horn; an alarm device that makes a loud warning sound; a high pommel of a Western saddle (usually metal covered with leather); a noisemaker (as at parties or games) that makes a loud noise when you blow through it; a noise made by the driver of an automobile to give warning;; the material (mostly keratin) that covers the horns of ungulates and forms hooves and claws and nails; stab or pierce with a horn or tusk; "the rhino horned the explorer"

demagogue collapse: an orator who appeals to the passions and prejudices of his audience

ranter collapse: someone who rants and raves; speaks in a violent or loud manner

strenuous collapse: characterized by or performed with much energy or force; "strenuous exercise"

kinetic collapse: characterized by motion; "modern dance has been called kinetic pantomime"; relating to the motion of material bodies and the forces associated therewith; "kinetic energy"

radio receiver collapse: an electronic receiver that detects and demodulates and amplifies transmitted signals

economics collapse: the branch of social science that deals with the production and distribution and consumption of goods and services and their management

vibrant collapse: of colors that are bright and striking; of sounds that are strong and resonating; "the men's vibrant voices"; vigorous and animated; "a vibrant group that challenged the system"; "a charming and vivacious hostess"; "a vivacious folk dance"

mineralogy collapse: the branch of geology that studies minerals: their structure and properties and the ways of distinguishing them

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