Adjective
Of
,
or
relating
to
the
tropics
;
tropical
.
Noun
Either
of
the
two
parallels
of
latitude
23
°
27
north
and
south
of
the
equator
;
the
farthest
points
at
which
the
sun
can
be
directly
overhead
;
the
boundaries
of
the
torrid zone
or
tropics
.