Definition of directional
adj.
1.
of
or
pertaining
to
direction
(
definition
2
).
2.
serving
to
indicate
direction
.
3.
(Radio)
transmitting
radio
signals
in
a
specific
direction
,
or
receiving
signals
only
from
a
narrow
angle
of
directions
,
thus
serving
to
indicate
the
direction
from
which
radio
signals
are
coming
.
Used
of
antennas
;
as
,
a
directional
antenna
.
Related Words
directing
,
directive
,
guiding
,
leading
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