sound head

sound head

noun Movies.
a mechanism through which film passes in a projector for conversion of the soundtrack into audio-frequency signals that can be amplified and reproduced.
Also called sound gate.


Origin:
1930–35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Sound head is always a great word to know.
So is ort. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a scrap or morsel of food left at a meal.
Collins
World English Dictionary
sound head
 
n
the part of a film projector that reproduces the sound in a film

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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