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logical
adjective
using
clear
,
careful
reasoning
or
making
sense
in
an
ordinary
,
practical
way
•
It
was
logical
to
lock
the
doors
before
leaving
the
house
.
It
was
logical
to
lock
the
doors
before
leaving
the
house
.
•
After
hearing
all
the
evidence
,
the
most
logical
conclusion
was
that
the
cat
had
knocked
over
the
vase
.
After
hearing
all
the
evidence
,
the
most
logical
conclusion
was
that
the
cat
had
knocked
over
the
vase
.
From
the
noun
logic
+
-al
,
first
recorded
in
English
in
the
late
16th
century
.
adjective
relating
to
formal
logic
in
computing
or
electronics
,
especially
operations
that
compare
true
and
false
values
•
The
programmer
used
a
logical
operator
to
compare
the
two
values
.
The
programmer
used
a
logical
operator
to
compare
the
two
values
.
•
In
digital
circuits
,
a
NAND
gate
is
a
basic
logical
element
.
In
digital
circuits
,
a
NAND
gate
is
a
basic
logical
element
.
Same
derivation
as
the
general
sense
;
applied
to
computer
science
in
the
mid-20th
century
when
Boolean
logic
became
central
to
electronic
computing
.
psychological
adjective
relating
to
the
mind
,
thoughts
,
or
feelings
rather
than
the
body
•
After
the
car
accident
,
Maria
needed
psychological
help
to
overcome
her
fear
of
driving
.
After
the
car
accident
,
Maria
needed
psychological
help
to
overcome
her
fear
of
driving
.
•
Long
periods
of
isolation
can
cause
serious
psychological
effects
on
astronauts
aboard
the
space
station
.
Long
periods
of
isolation
can
cause
serious
psychological
effects
on
astronauts
aboard
the
space
station
.
From
psychology
+
-ical
,
first
used
in
the
mid-19th
century
when
psychology
emerged
as
a
scientific
field
.
adjective
planned
to
influence
a
person
’
s
thoughts
or
feelings
,
especially
to
gain
an
advantage
•
The
army
used
loud
music
as
a
psychological
tactic
to
keep
the
enemy
awake
at
night
.
The
army
used
loud
music
as
a
psychological
tactic
to
keep
the
enemy
awake
at
night
.
•
Mark
played
a
clever
psychological
trick
by
staring
silently
at
his
chess
rival
to
make
him
nervous
.
Mark
played
a
clever
psychological
trick
by
staring
silently
at
his
chess
rival
to
make
him
nervous
.
Extension
of
the
basic
sense
,
first
recorded
in
military
writings
during
World
War
II
when
strategies
to
affect
enemy
morale
became
formalized
.
biological
adjective
connected
with
living
things
and
how
they
work
•
In
science
class
,
we
studied
the
biological
functions
of
the
human
heart
.
In
science
class
,
we
studied
the
biological
functions
of
the
human
heart
.
•
Scientists
discovered
a
new
biological
pathway
that
controls
sleep
.
Scientists
discovered
a
new
biological
pathway
that
controls
sleep
.
From
biology
+
-ical
,
first
recorded
in
the
early
19th
century
.
adjective
related
by
blood
rather
than
by
adoption
or
marriage
•
After
years
of
searching
,
she
finally
met
her
biological
mother
.
After
years
of
searching
,
she
finally
met
her
biological
mother
.
•
He
has
two
sisters
,
one
adopted
and
one
biological
.
He
has
two
sisters
,
one
adopted
and
one
biological
.
Extension
of
the
scientific
sense
to
blood
relations
in
the
mid-20th
century
.
noun
a
person
’
s
biological
parent
•
At
the
reunion
,
he
was
nervous
about
meeting
his
biological
for
the
first
time
.
At
the
reunion
,
he
was
nervous
about
meeting
his
biological
for
the
first
time
.
•
The
adoptee
wrote
a
letter
to
her
biological
asking
for
a
meeting
.
The
adoptee
wrote
a
letter
to
her
biological
asking
for
a
meeting
.
Noun
use
developed
from
the
adjective
in
late
20th-century
North
American
adoption
communities
.
ideology
noun
-
ideology
,
ideologies
a
system
of
ideas
and
beliefs
that
guides
the
aims
and
actions
of
a
person
,
group
,
or
movement
•
The
revolutionary
group
adopted
a
new
ideology
centered
on
equality
and
freedom
.
The
revolutionary
group
adopted
a
new
ideology
centered
on
equality
and
freedom
.
•
Environmental
protection
is
at
the
heart
of
the
party
’
s
ideology
.
Environmental
protection
is
at
the
heart
of
the
party
’
s
ideology
.
early
19th-century
coinage
from
French
idéologie
,
originally
meaning
the
‘
science
of
ideas
’,
from
Greek
idea
‘
form
,
pattern
’
+
–logy
‘
study
’.
noun
-
ideology
,
ideologies
the
general
way
of
thinking
and
set
of
values
typical
of
a
society
,
culture
,
or
historical
period
•
The
dominant
ideology
of
the
1950s
emphasized
traditional
family
roles
.
The
dominant
ideology
of
the
1950s
emphasized
traditional
family
roles
.
•
Modern
business
ideology
often
values
innovation
over
stability
.
Modern
business
ideology
often
values
innovation
over
stability
.
Same
origin
as
Sense
1
:
from
French
idéologie
, ‘
science
of
ideas
’.
Over
time
it
came
to
mean
the
ideas
themselves
.
technological
adjective
relating
to
,
involving
,
or
resulting
from
modern
technology
,
machines
,
or
scientific
methods
•
The
company
invested
heavily
in
technological
innovation
to
stay
ahead
of
its
competitors
.
The
company
invested
heavily
in
technological
innovation
to
stay
ahead
of
its
competitors
.
•
Some
rural
areas
still
lack
the
technological
infrastructure
needed
for
high-speed
internet
.
Some
rural
areas
still
lack
the
technological
infrastructure
needed
for
high-speed
internet
.
From
technology
+
-ical
,
first
recorded
in
the
early
19th
century
as
industrial
inventions
accelerated
during
the
Industrial
Revolution
.
ideological
adjective
relating
to
or
based
on
a
particular
set
of
ideas
,
beliefs
,
or
doctrines
,
especially
in
politics
or
society
•
The
two
parties
are
locked
in
an
ideological
battle
over
healthcare
reform
.
The
two
parties
are
locked
in
an
ideological
battle
over
healthcare
reform
.
•
Her
decisions
seemed
guided
more
by
ideological
purity
than
by
practical
concerns
.
Her
decisions
seemed
guided
more
by
ideological
purity
than
by
practical
concerns
.
From
ideology
+
-ical
,
first
recorded
in
the
early
19th
century
.