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strain
noun
mental
or
physical
pressure
or
tension
caused
by
demanding
situations
•
After
a
week
of
exams
,
Maria
felt
a
lot
of
strain
in
her
shoulders
.
After
a
week
of
exams
,
Maria
felt
a
lot
of
strain
in
her
shoulders
.
•
The
tight
project
deadline
put
heavy
strain
on
the
small
design
team
.
The
tight
project
deadline
put
heavy
strain
on
the
small
design
team
.
noun
an
injury
in
which
a
muscle
or
tendon
is
stretched
or
torn
by
too
much
use
or
force
•
The
runner
had
to
stop
because
of
a
hamstring
strain
.
The
runner
had
to
stop
because
of
a
hamstring
strain
.
•
Ice
helps
reduce
pain
after
a
muscle
strain
.
Ice
helps
reduce
pain
after
a
muscle
strain
.
verb
-
strain
,
straining
,
strains
,
strained
to
injure
a
muscle
or
body
part
by
stretching
it
too
much
•
Don't
strain
your
eyes
staring
at
the
screen
all
day
.
Don't
strain
your
eyes
staring
at
the
screen
all
day
.
•
She
strained
her
ankle
jumping
off
the
curb
.
She
strained
her
ankle
jumping
off
the
curb
.
verb
-
strain
,
straining
,
strains
,
strained
to
pour
a
liquid
through
a
sieve
,
cloth
,
or
similar
device
to
remove
solid
pieces
•
After
boiling
the
pasta
,
strain
it
and
add
the
sauce
.
After
boiling
the
pasta
,
strain
it
and
add
the
sauce
.
•
She
strained
the
tea
leaves
out
before
serving
.
She
strained
the
tea
leaves
out
before
serving
.
noun
a
particular
type
or
variety
of
plant
,
animal
,
or
microorganism
that
differs
from
others
of
the
same
species
•
Scientists
discovered
a
new
strain
of
the
flu
virus
.
Scientists
discovered
a
new
strain
of
the
flu
virus
.
•
This
tomato
strain
grows
well
in
cold
climates
.
This
tomato
strain
grows
well
in
cold
climates
.
verb
-
strain
,
straining
,
strains
,
strained
to
make
a
great
physical
or
mental
effort
;
to
try
very
hard
•
He
had
to
strain
to
hear
the
faint
music
.
He
had
to
strain
to
hear
the
faint
music
.
•
The
old
bridge
is
straining
under
the
weight
of
heavy
trucks
.
The
old
bridge
is
straining
under
the
weight
of
heavy
trucks
.
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
.
