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magnetotelephone
Language
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English
edit
Etymology
edit
From
magneto-
+
telephone
.
Noun
edit
magnetotelephone
(
plural
magnetotelephones
)
(
dated
)
An early
telephone
with a
diaphragm
of soft iron placed close to the
pole
of a
magnet
upon which is wound a coil of fine wire. Its
vibrations
produce corresponding
currents
in the wire by
induction
.
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English terms prefixed with magneto-
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English countable nouns
English dated terms
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