Projectile

Projectiles are weapons that are thrown.

Castlevania: Symphony of the Night
In Castlevania: Symphony of the Night, these are distinguished from other throwing weapons in that they are used only once for every such Projectile found in an inventory. They are called "Throw 2" weapons in North America. This is in contrast with the Sub-Weapons, which consume hearts when throwns, and Throwing Swords, which can be thrown an infinite number of times without any cost.