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Gnomon
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Meaning
Noun
●
In Clocks & Timekeeping:
An
object
such as a
pillar
or a
rod
that
is used to
tell time
by the
shadow
it
casts
when the
sun
shines
on it
, especially the
pointer
on a
sun
dial.
●
An
object
such as a
pillar
used by an
observer
to
calculate
the
meridian
altitude
of the
sun
(that is, the
altitude
of the
sun
when it
reaches
the
observer
's
meridian
), for the
purpose
of
determining
the
observer
's latitude.
●
The
index
of the
hour circle
of a globe.
●
In Geometry:
A
plane
figure
formed
by
removing
a
parallelogram
from a
corner
of a
larger
parallelogram
.
●
In Mathematics:
A number
representing
the
increment
between two
figurate numbers
(“numbers
equal
to the
numbers
of
dots
in
geometric
figures
formed
of
dots
”).
Sourced from
Wiktionary
Origin
gnomon
English
gnomon
Latin
γνώμων
Ancient Greek (to 1453)
Sourced from
Etym
Synonyms
Cock
Style
Related
Sundial
Goniometer
Diffraction Grating
Plumb Bob
Convex Lens
Triangular Prism
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