مُجَوَّفٌ

2.
Also A beast whose بَلَق [q. v.] reaches up to his belly: (As, S, K:) or a horse whose بَلَق reaches to his sides is said to be مُجَوَّفٌ بَلَقًا. (AA, TA.) [See also أَجْوَفُ, last meaning but one.]
3.
And an epithet applied to the bird called صُرَد, because it is white in the belly. (Mgh and Msb in article صرد.)

Perseus ID: n6738