Collidersi

Collidersi is an Italian verb that denotes the act of colliding or coming into contact with one another. It is a reflexive form used when the subject is involved in the collision with another object or person. The non-reflexive form collidere describes the act of one object colliding with another, while collidersi emphasizes mutual interaction or reciprocal collision. The word derives from Latin collidere, to strike together, with the reflexive suffix -si forming a reciprocal or self-involved action.

Usage of collidersi appears in everyday language to describe incidents such as traffic crashes, bumps during sports, or any situation where two bodies strike each other. In technical or scientific contexts, the non-reflexive collidere or the noun collisione is more common, whereas collidersi may be used when focusing on the mutual interaction or involvement of the participants in the contact, for example in descriptions of reciprocal particle interactions in a collider.

Related terms include scontrarsi (to clash or crash), urtare (to graze or bump), and collisione (collision). In dictionaries, collidersi is recognized as a reflexive variant of collidere; in formal writing, authors may prefer the non-reflexive collidere or other non-refl exive expressions depending on the context.