Disintegration curse

Molly Weasley used this curse in 1998 in a fit of anger after Bellatrix Lestrange tried to kill Ginny Weasley.

This curse is blue-ish in color. It is most likely a variation of "Avada Kedavra". However, this version makes the target become pale and shrivel up a little bit.

Note this spell is only used in the film adaptation.