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Picture Dictionary
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constraint
noun
something
that
limits
what
you
can
do
or
the
way
you
can
behave
•
Because
of
budget
constraints
,
the
school
canceled
its
annual
field
trip
.
Because
of
budget
constraints
,
the
school
canceled
its
annual
field
trip
.
•
The
laboratory
works
within
strict
safety
constraints
when
handling
dangerous
chemicals
.
The
laboratory
works
within
strict
safety
constraints
when
handling
dangerous
chemicals
.
From
Middle
French
contrainte
(“
pressure
,
coercion
”),
from
Old
French
constreinte
,
from
Latin
constrictus
,
past
participle
of
constringere
“
to
bind
tightly
”.
noun
controlled
or
forced
behaviour
that
shows
someone
is
not
relaxed
or
natural
•
There
was
a
noticeable
constraint
in
her
voice
during
the
formal
dinner
.
There
was
a
noticeable
constraint
in
her
voice
during
the
formal
dinner
.
•
He
spoke
without
constraint
,
joking
openly
with
the
audience
.
He
spoke
without
constraint
,
joking
openly
with
the
audience
.
noun
a
rule
or
condition
that
a
solution
,
design
,
or
database
value
must
satisfy
•
A
unique
key
constraint
prevents
duplicate
records
in
the
table
.
A
unique
key
constraint
prevents
duplicate
records
in
the
table
.
•
Engineers
had
to
design
the
bridge
within
weight
constraints
set
by
the
city
.
Engineers
had
to
design
the
bridge
within
weight
constraints
set
by
the
city
.