What does aceldama mean?
The definition of aceldama
A*cel”da*ma, n.
Etym: [Gr. okel damo the field of blood.]

The potter’s field, said to have lain south of Jerusalem, purchased with the bribe which Judas took for betraying his Master, and therefore called the field of blood. Fig.: A field of bloodshed. The system of warfare . . . which had already converted immense tracts into one universal aceldama. De Quincey.