'Diadem spider' definitions:

Definition of 'Diadem spider'

From: GCIDE

Diadem \Di"a*dem\, n. [F. diad[`e]me, L. diadema, fr. Gr. ?, fr. ? to bind round; dia` through, across + ? to bind; cf. Skr. d[=a] to bind.]
1. Originally, an ornamental head band or fillet, worn by Eastern monarchs as a badge of royalty; hence (later), also, a crown, in general. "The regal diadem." --Milton. [1913 Webster]
2. Regal power; sovereignty; empire; -- considered as symbolized by the crown. [1913 Webster]
3. (Her.) An arch rising from the rim of a crown (rarely also of a coronet), and uniting with others over its center. [1913 Webster]
Diadem lemur. (Zool.) See Indri.
Diadem spider (Zool.), the garden spider. [1913 Webster]