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Webster 1913 Edition
marsupium
‖
mar-su′pi-um
,Noun.
pl.
marsupia
(#)
. [L., a pouch]
, (Anat. & Zool.)
(a)
The pouch, formed by a fold of the skin of the abdomen, in which marsupials carry their young; also, a pouch for similar use in other animals, as certain Crustacea.
(b)
The pecten in the eye of birds and reptiles. See
Pecten
.