Term: 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
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: delta iron: an allotrope of iron that is stable between 1403 degrees centigrade and the melting point (= 1532 degrees)
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: change-up: a baseball thrown with little velocity when the batter is expecting a fastball
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: blueprint paper: sensitized paper used to make blueprints
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: groupie: an enthusiastic young fan (especially a young woman who follows rock groups around)
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: insecureness: the state of being exposed to risk or anxiety
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: lagging: used to wrap around pipes or boilers or laid in attics to prevent loss of heat
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: grub: a soft thick wormlike larva of certain beetles and other insects
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: year: a period of time occupying a regular part of a calendar year that is used for some particular activity
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: gorilla: largest anthropoid ape; terrestrial and vegetarian; of forests of central west Africa
Broader: acoustic device: a device for amplifying or transmitting sound | Unrelated: home away from home: a place where you are just as comfortable and content as if you were home