Definitions of sextant

The
sixth
part
of
a
circle.

An
instrument
for
measuring
angular
distances
between
objects, 
used
esp.
at
sea,
for
ascertaining
the
latitude
and
longitude.
It
is
constructed
on
the
same
optical
principle
as
Hadley's
quadrant,
but
usually
of
metal,
with
a
nicer
graduation,
telescopic
sight,
and
its
arc
the
sixth,
and
sometimes
the
third,
part
of
a
circle.
See
Quadrant.

The
constellation
Sextans.

The
sixth
part
of
a
circle;
an
instrument
for
measuring
angular
distances,
used
especially
at
sea
for
determining
latitude
and
longitude.

(
math.)
The
sixth
part
of
a
circle:
an
optical
instrument
having
an
arc
the
sixth
part
of
a
circle,
and
used
for
measuring
angular
distances.

Sixth
part
of
a
circle;
instrument
for
measuring
angular
distances.

An
instrument
for
determining
latitude
at
sea.

The
sixth
part
of
a
circle;
an
instrument
for
measuring
angular
distances,
like
a
quadrant,
of
which
the
limb
comprehends
only
60
degrees,
or
the
sixth
of
a
circle;
a
constellation
of
the
southern
hemisphere.

In
math.,
the
sixth
part
of
a
circle;
an
instrument
like
a
quadrant,
but
having
an
arc
of
only
60
degrees,
or
the
sixth
part
of
a
circle,
used
at
sea
and
by
astronomers
for
measuring
angular
distances,
taking
altitudes, &
c.,
by
reflection.
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