Sissehingatud

Sissehingatud is an Estonian adjective formed as the past passive participle of the verb sissehingama, meaning to inhale. It describes substances or air that have been drawn into the lungs by inhalation. In usage, it is typically applied to gases, vapors, smoke, or air that has entered the respiratory system, such as “sissehingatud gaasid” (inhaled gases) or “sissehingatud õhk” (inhaled air).

In medical, toxicological, and environmental health contexts, sissehingatud refers to exposure or intake through inhalation rather than ingestion or dermal contact. The term helps distinguish routes of exposure when describing the effects or mechanisms of substances, for example in clinical notes, research reports, or regulatory assessments. It can also describe the state of air quality in terms of what has been breathed in by an individual.

Etymology and grammar: the word is derived from the verb sissehingama with the suffix -atud to form a past passive participle, functioning as an attributive adjective. It agrees with the noun it modifies in number, case, and gender, for example “sissehingatud gaasid” (plural) or “sissehingatud õhk” (singular). Related terms include the noun “sissehingamine,” which denotes the act of inhalation. The term is standard in Estonian medical and scientific vocabulary.