fossil
noun
ˈfɒsəl
noun
1
an
animal
or
plant
that
lived
many
thousands
of
years
ago
and
that
has
been
preserved,
or
the
shape
of
one
of
these
animals
or
plants
that
has
been
preserved
in
rock
化石
fossils
of
early
reptiles
早期爬行动物的化石
Marine
sponges
have
a
long
fossil
record
(=their
development
has
been
recorded
over
a
long
period)
.
海洋里的海绵化石记录历史悠久。
2
an
insulting
word
for
an
old
person
[非正式] 老古董〔对老年人的蔑称〕
informal