Crossword clues for megaphone
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Megaphone \Meg"a*phone\, n. [Mega- + Gr. fwnh` voice.] A device to magnify sound, or direct it in a given direction in a greater volume, as a very large funnel used as an ear trumpet or as a speaking trumpet.
Douglas Harper's Etymology Dictionary
Wiktionary
Etymology 1 n. A portable, usually hand-held, funnel-shaped device that is used to amplify a person’s natural voice toward a targeted direction. vb. (context transitive intransitive English) To use a megaphone. Etymology 2
n. (context organic compound English) a cytotoxic neolignan obtained from the laurel ''Aniba megaphylla''.
WordNet
n. a cone-shaped acoustic device held to the mouth to intensify and direct the human voice
Wikipedia
A megaphone, speaking-trumpet, bullhorn, or loud hailer is a portable, usually hand-held, cone-shaped acoustic horn used to amplify a person’s voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves radiate out the wide end. The megaphone increases the volume of sound by increasing the acoustic impedance seen by the vocal cords, matching the impedance of the vocal cords to the air, so that more sound power is radiated. It also serves to direct the sound waves in the direction the horn is pointing. It somewhat distorts the sound of the voice because the frequency response of the megaphone is greater at higher sound frequencies.
Since the 1960s the voice-powered acoustic megaphone described above has been replaced by the electric megaphone, which uses electric power to amplify the voice.
Megaphone is an American rock band from Orlando, Florida. They formed in late 2004 when founding member Matt Bloodwell (former drummer of the well known Orlando band Precious) traded his drums for a guitar and recruited local rock musicians from the Orlando music scene. Megaphone is: Paul Smith - Lead guitar, former touring guitarist for Seven Mary Three - Mammoth/Atlantic, and Vonray - Elektra Records. James Woodrich - Bass guitar, formerly of My Hotel Year - Doghouse Records. Scott Smith - Drummer, formerly of Cori Yarckin and newest member of the band joining in March 2007.
Megaphone could mean the following:
- Megaphone, a portable, usually hand-held, funnel-shaped device whose application is to send a person’s natural voice toward a targeted direction for a specified purpose.
- Megaphone (band), rock band from Orlando, Florida.
- Megaphone desktop tool, the pro-Israel lobbying software tool.
- Megaphone (molecule), cytotoxic neolignan from Aniba megaphylla.
- MegaFon, a Russian mobile phone operator
- Megaphon, an Austrian street newspaper
Megaphone is a cytotoxic neolignan obtained from Aniba megaphylla, a flowering plant of Laurel family which gave the compound its name. Megaphone has also been prepared synthetically.
Studies carried out in the 1960s demonstrated that an alcoholic extract of the ground root of Aniba megaphylla inhibited, in vitro, growth of cells derived from human carcinoma of the nasopharynx. In 1978, the active components of the extract were isolated using silica gel chromatography, characterized and named as megaphone (CHO, solid), megaphone acetate (CHO, oily liquid) and megaphyllone acetate (CHO, oily liquid). For comparison, megaphone acetate was also produced synthetically by reacting megaphone with acetic anhydride at 50 °C for 6 hours. Stirring an alcoholic solution of megaphone (megaphone acetate), with added palladium catalyst, in hydrogen atmosphere, followed by evaporation of the solvent yields tetrahydromegaphone (tetrahydromegaphone acetate) as an oil. Millimeter-sized crystals of megaphone can be grown from an ether- chloroform solution. They have monoclinic symmetry with space group P2, lattice constants a = 0.8757 nm, b = 1.1942 nm and c = 1.0177 nm and two formula units per unit cell. Megaphone and megaphone acetate molecules are chiral and the reported extraction and synthesis procedures yielded their racemic mixtures. Megaphone acetate was also isolated from the root of Endlicheria dysodantha, another plant of Laurel family, using chromatography of ethanolic solution. It showed inhibitory activity against cells of crown gall tumor and human lung, breast and colon carcinomas.
Usage examples of "megaphone".
He looked at his watch and as the second hand touched the top stepped up and raised the bugle to the megaphone, and the nervousness dropped from him like a discarded blouse, and he was suddenly alone, gone away from the rest of them.
Prewitt lowered the bugle slowly and let the megaphone rest in its swivel.
The Chief said, and they all stopped talking then and turned to look at the corner of the quad where the guard bugler was raising his horn to the big megaphone to sound Tattoo.
In the corner of the quad at the megaphone, among all the men running back and forth, the guard bugler was blowing The Charge.
Down below the loading detail dived out to pick up the clips in the lull, and the bugler ran back to the megaphone.
I can see him, El Jefe, standing outside with his megaphone, saying all is forgiven, mad dog surrender .
Roland bawled something through his megaphone, but it was muffed by the sucking, washing noises of the water between the ships.
All these noises came up to the two on the tower smally, as though they were listening through the wrong end of a megaphone.
Deprived of those walks, he followed the tradition of artisanal ingenuity in the Bastille by adapting into an improvised megaphone the metal funnel used to deposit his urine and slops into the moat.
This was called a stentorophonic tube, and seems to have been a sort of gigantic megaphone or speaking-trumpet.
The spirits most often speak by means of raps on the table, but Katherine tells me that the spirit of her little boy spoke directly, through the floating megaphone.
There had been seventeen contestants, avid for the Halitosis Crown, and by the time the puffing was completed, what with the ceremonial manner in which the man in shirtsleeves brought each one to the chair of trial, and the fuss that the phony nurse made in cleansing the megaphone, the platform reeked of Listerine, and I doubt if the Giant Blunderbore, after a heavy meal of human flesh, could have penetrated it with his dreadful breath.
Commissioner Charles Dusseau jokingly suggests that lobbyists bring megaphones to the meetings and holler their advice.
Those damn dirges are still running around my brain, like a tone-deaf rat with a megaphone is trapped inside my head.
He leaned over the bridge rail with the megaphone and called aft: 'Let it go.