Reaktivních

Reaktivních is a grammatical form of the Czech adjective reaktivní, meaning reactive or capable of responding to stimuli. In everyday and technical language, reaktivní describes things that undergo or are likely to undergo a reaction, such as chemicals reacting in a system, or a system that responds to external input. The form reaktivních is not a standalone word but the genitive plural form of reaktivní, used when describing nouns in the genitive case.

In Czech, adjectives agree with the nouns they modify in gender, number and case. The genitive plural ending -ních appears with certain hard stems and is common in technical and scientific usage. Therefore, reaktivních is frequently seen in phrases like reaktivních látek (reactive substances), reaktivních procesech or reaktivních systémech, where the genitive plural governs the noun it modifies. Such constructions are typical in chemistry, physics, and related fields, as well as in descriptive prose about materials or responses to stimuli.

Related terms include reaktivita (reactivity), reaktant (reactant), and reagovat (to react). The root reaktiv- traces back to the international vocabulary via Latin or German roots, aligning with the English term reactive. The term is part of a broader Czech scientific lexicon that uses reaktivní to denote processes, substances, or systems that participate in chemical or physical reactions, or that respond to external influences.