Noun
Used
loosely
,
a
tentative
conjecture
explaining
an
observation
,
phenomenon
or
scientific
problem
that
can
be
tested
by
further
observation
,
investigation
and
/
or
experimentation
.
As
a
scientific
term of art
,
see
the
attached
quotation
.
Compare
to
theory
,
and
quotation
given
there
.