patagium

n. 翼膜
【医】 翼状膜

形容词:patagial 名词复数:patagia 

pa.ta.gi.um

n.（名词）
【复数】 pa.ta.gi.a[-jô-…]
A thin membrane extending between the body and a limb to form a wing or winglike extension, as in bats and flying squirrels.Also called parachute
翼膜：肢体和躯干间的一种薄膜，形成一翼或似翼的伸展部分，如蝙蝠和飞行松鼠的皮肤褶也作 parachute
An expandable, membranous fold of skin between the wing and body of a bird.
翅翼：鸟翼和躯干间的一种可伸展开的皮肤褶

来源：
Latin patagium [gold edging on a woman`s tunic]
拉丁语 patagium [妇女束腰的金边]
perhaps from Greek *patageion
可能源自 希腊语 *patageion
from patagos [clatter]
源自 patagos [噼啪声]
of imitative origin
拟声语源

【引伸】
pata.gial