جب

مُجَبَّبٌ مجبب A horse in which the [ whiteness termed ] تَحْجِيل reaches to the knee and the hock; (S;) [i. e.] in which the whiteness [ of the lower part of the leg ] reaches to the knee and the hock or the knees and the hocks: (TA:) or in which the تحجيل reaches to his knees: (Lth, TA:) or in which the whiteness rises to [ the extent of ] what is termed الجَبَبُ; (K, TA;) or more than this, [perhaps a mistake of a copyist for less than this, ] so as not to reach to the knees: or in which the whiteness reaches to the hairs that surround his hoof. (TA.) ― -b2- بِئْرٌ مُجَبَّبَةٌ الجَوْفِ A well having in the middle a part wider than the rest, hollowed out like a cupola. (Fr, TA.)