Reageeritavad

Reageeritavad is an Estonian adjective meaning capable of reacting. It is the plural form of the participle or descriptive adjective reageeritav and is used to describe substances, systems, or stimuli that can engage in a reaction or response under certain conditions. The word is formed from the verb reageerida (to react) with the participial suffix -dav and the plural ending -vad.

In practice, reageeritavad is common in scientific and technical contexts. In chemistry, phrases such as reageeritavad ained refer to substances that participate in chemical reactions; in biology or psychology, it can describe systems or signals that respond to stimuli. The nuance is that reageeritav emphasizes the potential to react, whereas other terms may convey different shades of immediacy or mechanism.

Usage notes: The form reageeritavad is used attributively before a noun, for example, reageeritavad ained or reageeritavad süsteemid. It can also function as a short predicate when the noun is understood from context, for instance, Need on reageeritavad meaning “These are reactive.” The plural form agrees with the noun it modifies.

Nuance and related terms: Reageeritav highlights potential reactivity, while a term like reaktiivne is also used in Estonian to denote reactive behavior more generally. Reageeritavad appears across educational materials, scientific literature, and technical descriptions to describe entities capable of responding or participating in a reaction.