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Webster 1913 Edition
Patagium
‖
Pa-ta′gi-um
,Noun.
pl.
Patagia
(#)
. [L., an edge or border.]
1.
(Anat.)
In bats, an expansion of the integument uniting the fore limb with the body and extending between the elongated fingers to form the wing; in birds, the similar fold of integument uniting the fore limb with the body.
2.
(Zool.)
One of a pair of small vesicular organs situated at the bases of the anterior wings of lepidopterous insects. See Illust. of
Butterfly
.