The Collaborative International Dictionary of English v.0.48:

Magdala \Mag"da*la\, a.
   Designating an orange-red dyestuff obtained from
   naphthylamine, and called magdala red, naphthalene red, etc.
   [1913 Webster]

Easton's 1897 Bible Dictionary:

Magdala
   a tower, a town in Galilee, mentioned only in Matt. 15:39. In
   the parallel passage in Mark 8:10 this place is called
   Dalmanutha. It was the birthplace of Mary called the Magdalen,
   or Mary Magdalene. It was on the west shore of the Lake of
   Tiberias, and is now probably the small obscure village called
   el-Mejdel, about 3 miles north-west of Tiberias. In the Talmud
   this city is called "the city of colour," and a particular
   district of it was called "the tower of dyers." The indigo plant
   was much cultivated here.


Hitchcock's Bible Names Dictionary (late 1800's):

Magdala, tower; greatness