丝膜
Armilla \Ar*mil"la\, n.; pl. E. {Armillas}, L. {Armill[ae]}.
[L., a bracelet.]
1. An armil.
2. (Zo["o]l.) A ring of hair or feathers on the legs.
armilla
n 1: a celestial globe consisting of metal hoops; used by early
astronomers to determine the positions of stars [syn: {armillary
sphere}]
2: (archeology) a bracelet worn around the wrist or arm