Plural of experimentation; multiple instances or acts of testing ideas or methods to see what results occur.
From experimentation (noun) + -s (plural marker). Experimentation itself comes from experiment + -ation (suffix forming nouns from verbs). The -ation suffix converts verbs into abstract nouns representing actions or processes.
When you see 'experimentations' in scientific papers, it often refers to the many different attempts scientists made before finding something that worked—like Edison's thousands of failed lightbulb experiments were the experimentations that led to success!
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