störendem
Störendem is a German grammatical form: it is the dative singular masculine or neuter inflection of the present-participle adjective störend, which means disturbing or causing disturbance. The form is used when the noun it modifies is in the dative case and lacks a preceding determiner.
In practice, störendem appears in phrases describing a situation or object that disturbs someone or something,
Usage notes: störendem is most common in descriptive or formal writing, especially when emphasizing the disturbance
See also: stören (to disturb), störend (present participle/adjective in base form).