#accessory

• Allodromia — A rare disorder or structural anomaly in the conduction of the heart's electrical impulses, characterized by the propagation of the stimulus through accessory pathways or in an atypical direction, different from the normal physiological pathway (sinus node, atrioventricular node, and bundle of His). This phenomenon can lead to severe arrhythmias or pre-excitation syndromes.
• Vibration dampener — A device, component, or material used for absorbing, dampening, or eliminating vibrations, tremors, and mechanical shock waves produced by machinery, engines, pipes, or sports equipment. In mechanics, it protects structures against material fatigue; in sports (e.g., tennis), it is a small silicone piece placed between the racket strings to reduce shocks transmitted to the player's arm.
• Sidecar — A secondary lateral device or vehicle, with a single wheel, designed to be mechanically attached to the side of a motorcycle, intended to carry an additional passenger or goods. In an administrative or technical sense, it represents an added piece, an annexed document, or a structural accessory mounted on a machine to expand its primary functionality.
• Attachable — Capable of being easily attached, mounted, fixed, or coupled to a main object, machine, apparatus, or major technical assembly. Structurally or conceptually, the term describes a modular element, accessory, or auxiliary component specifically designed to extend the functionality of a base system without permanently altering its native structure.