1) Divination practiced with water in a basin, by throwing three stones into it, and invoking the demon whose aid was sought.
2) Divination by water in a basin, performed by various means as by dropping gems in the water, or by staring into the water's surface in order to see prophetic images.
Derived from New Latin lecanomantia, leconomantia (Agrippa), from Late Latin lecanomantia, from the ancient Greek lekanomanteia, from lekane a dish, a pan.
See entry in The Mantalogue.
(I'm sorry I've been absent for a couple of weeks. no excuse besides work and business. back now though, for good I hope.)