Definition of Phonautograph
Pho`nau´to`graph
n.
1.
(Physics)
An
instrument
by
means
of
which
a
sound
can
be
made
to
produce
a
visible
trace
or
record
of
itself
.
It
consists
essentially
of
a
resonant
vessel
,
usually
of
paraboloidal
form
,
closed
at
one
end
by
a
flexible
membrane
.
A
stylus
attached
to
some
point
of
the
membrane
records
the
movements
of
the
latter
,
as
it
vibrates
,
upon
a
moving
cylinder
or
plate
.
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Phoca
Phocacean
Phocal
Phocenic
Phocenin
Phocine
Phocodont
Phocodontia
Phoebe
Phoebus
Phoenician
Phoenicious
Phoenicopterus
Phoenix
Pholad
Pholadean
Pholas
Phonal
Phonascetics
Phonation
Phone
Phoneidoscope
Phonetic
Phonetic spelling
Phonetically
Phonetician
Phonetics
Phonetism
Phonetist
Phonetization
Phonetize
phoney
Phonic
Phonics
Phono
Phono-
Phonocamptic
Phonogram
Phonograph
Phonographer
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