Definition of Trematodea
Trem`a`to´de`a
n. pl.
1.
(Zool.)
An
extensive
order
of
parasitic
worms
.
They
are
found
in
the
internal
cavities
of
animals
belonging
to
all
classes
.
Many
species
are
found
,
also
,
on
the
gills
and
skin
of
fishes
.
A
few
species
are
parasitic
on
man
,
and
some
,
of
which
the
fluke
is
the
most
important
,
are
injurious
parasites
of
domestic
animals
.
The
trematodes
usually
have
a
flattened
body
covered
with
a
chitinous
skin
,
and
are
furnished
with
two
or
more
suckers
for
adhesion
.
Most
of
the
species
are
hermaphrodite
.
Called
also
Trematoda
,
and
Trematoidea
.
See
Fluke
,
Tristoma
,
and
Cercaria
.
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Treenail
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Trekometer
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Tremando
Trematode
Trematoid
Tremble
Trembler
Trembling
Trembling poplar
Tremella
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Tremex
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