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Webster's 1913 Dictionary
ASCIDIUM
As
*
cid
"i *
um,
n.;
pl.
Ascidia.
Etym:
[
NL.
,
fr.
ascus.
See
Ascus.
]
1. (
Bot.
)
Defn: A pitcher-shaped,
or
flask-shaped,
organ
or
appendage
of
a
plant,
as
the
leaves
of
the
pitcher
plant,
or
the
little
bladderlike
traps
of
the
bladderwort
(
Utricularia
).
2.
pl.
(Zoöl.)
Defn: A
genus
of
simple
ascidians,
which
formerly
included
most
of
the
known
species.
It
is
sometimes
used
as
a
name
for
the
Ascidioidea,
or
for
all
the
Tunicata.
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