検索結果- 英語 - 英語
検索内容:
postulant
noun
postulation
noun
Koch's postulate
noun
Any
of
four
criteria
designed
to
establish
a
causative
relationship
between
a
microbe
and
a
disease:
(i)
the
microorganism
must
be
found
in
abundance
in
all
organisms
suffering
from
the
disease,
but
should
not
be
found
in
healthy
organisms;
(ii)
it
must
be
isolated
from
a
diseased
organism
and
grown
in
pure
culture;
(iii)
the
cultured
microorganism
should
cause
disease
when
introduced
into
a
healthy
organism;
(iv)
the
microorganism
must
be
reisolated
from
the
inoculated,
diseased
experimental
host
and
identified
as
being
identical
to
the
original
specific
causative
agent.
parallel postulate
noun
(geometry)
An
axiom
of
Euclidean
geometry
equivalent
to
the
statement
that,
given
a
straight
line
L
and
a
point
P
not
on
the
line,
there
exists
exactly
one
straight
line
parallel
to
L
that
passes
through
P;
a
variant
of
this
axiom,
such
that
the
number
of
lines
parallel
to
L
that
pass
through
P
may
be
zero
or
more
than
one.
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