Definition of "serbonian" [ser•bo•ni•an]

• Relating to the lake of Serbonis in Egypt, which by reason of the sand blowing into it had a deceptive appearance of being solid land, but was a bog. (adjective)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)

• "And there, whether it be in the light that beats on God's great throne, or in the serbonian darkness of a hell more horrible than that pictured by Dante -- is the true Heaven."