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4 definitions found
From:
DICT.TW English-Chinese Dictionary 英漢字典
cot·y·le·don
/ˌkɑtəˈlidṇ/
子葉,瓦松屬
From:
DICT.TW English-Chinese Medical Dictionary 英漢醫學字典
cot·y·le·don
/ˌkɑtḷˈɪdṇ/
名詞
From:
Webster's Revised Unabridged Dictionary (1913)
Cot·y·le·don
n.
1.
Anat.
One
of
the
patches
of
villi
found
in
some
forms
of
placenta
.
2.
Bot.
A
leaf
borne
by
the
caulicle
or
radicle
of
an
embryo
;
a
seed
leaf
.
Note:
☞
Many
plants
,
as
the
bean
and
the
maple
,
have
two
cotyledons
,
the
grasses
only
one
,
and
pines
have
several
.
In
one
African
plant
(
Welwitschia
)
the
cotyledons
are
permanent
and
grow
to
immense
proportions
.
◄
►
From:
WordNet (r) 2.0
cotyledon
n
:
embryonic
leaf
in
seed-bearing
plants
[
syn
:
seed leaf
]
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