Definition of Directrix
Di`rect´rix
n.
1.
A
directress
.
2.
(Geom.)
A
line
along
which
a
point
in
another
line
moves
,
or
which
in
any
way
governs
the
motion
of
the
point
and
determines
the
position
of
the
curve
generated
by
it
;
the
line
along
which
the
generatrix
moves
in
generating
a
surface
.
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Direct-coupled antenna
directed
Directer
Directer plane
Direction
directional
directionality
directionless
Directive
directivity
Directly
Directly proportional
Directness
Directoire style
Director
Directorate
Directorial
Directorship
Directory
Directress
Direful
Direly
Dirempt
Diremption
Direness
Direption
Direptitious
Direptitiously
Dirge
Dirgeful
Dirige
Dirigent
Dirigible
dirigisme
dirigiste
Diriment
Diriment impediment
Dirk
Dirk knife
Dirkness
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
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T
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Z
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