change of substance ఒక వస్తువు వేరే వస్తువుకావడము. In the Roman Catholic theology, the supposed conversion ofthe bread and wine in the eucharist into the body and blood of Christకాతలిక్కు మత ప్రకారము రొట్టె మాంసము కావడము. See Gibbon ( IX. 112 note ) "The learned Selden has given the history of * in a comprehensive andpithy sentence.....This opinion is only rhetoric turned into logic---" Selden's Table Talk.