دُرْعَةٌ
1.
, in a horse, and in a sheep or goat, Blackness of the head, and whiteness [of the other parts]: or, according to some, blackness of the head and neck: a subst. from دَرِعَ [q. v.]. (Msb.)
2.
See also أَدْرَعُ, in the middle of the paragraph.