pour cette précision.

Et pour le très intéressant texte de Wikipedia, sur Hildebert de Lavardin, mais aussi sur le 4e concile du Latran, et sur le concile de Trente :

This council thus officially approved use of the term "transubstantiation" to express the Catholic Church's teaching on the subject of the conversion of the bread and wine into the body and blood of Christ in the Eucharist,[9] with the aim of safeguarding Christ's presence as a literal truth, while emphasizing the fact that there is no change in the empirical appearances of the bread and wine.[10] But it did not impose the Aristotelian theory of substance and accidents: it spoke only of the "species" (the appearances), not the philosophical term "accidents".

Grâce à vous je suis un peu moins ignorant aujourd'hui.