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n. pl. pa·ta·gi·a (-jē-ə)
1. A thin membrane extending between the body and a limb to form a wing or winglike extension, as in bats and flying squirrels.
2. An expandable membranous fold of skin between the wing and body of a bird.
[Latin patagium, gold edging on a woman's tunic, perhaps from Greek *patageion, from patagos, clatter, of imitative origin .]
pa·ta′gi·al (-jē-əl) adj.
n, pl -gia (-dʒɪə)
1. (Zoology) a web of skin between the neck, limbs, and tail in bats and gliding mammals that functions as a wing
2. (Zoology) a membranous fold of skin connecting margins of a bird's wing to the shoulder
[C19: New Latin from Latin, from Greek patageion gold border on a tunic]
pa•ta•gi•um(pəˈteɪ dʒi əm)
n., pl. -gi•a (-dʒi ə)
1. the fold of skin between the forelimb and hindlimb in the flying squirrel and other gliding animals.
2. the fold of skin between the shoulder and forewing of a bird.
3. either of two small processes on the anterior thorax, esp. in butterflies and moths.
[1820–30; < New Latin; Latin patagium tunic border]