Blood Meteorite (血星磊 Kesseiseki?) is a Blood Manipulation attack.
The user hardens some of their blood and throws it at a target. Even through this technique hardens blood, it does not have the speed or power of Piercing Blood.
Choso used this technique against Yuji Itadori during their confrontation at metro station by shooting a Blood Meteorite to his vital organs without he was noticed.