People or things that are in the middle of a range or process, between beginner and advanced levels. In chemistry, compounds formed during a reaction process.
From Latin 'intermedius', combining 'inter' (between) and 'medius' (middle). The word entered English in the 17th century, initially in academic contexts before expanding to general use for anything positioned between extremes.
The concept of 'intermediates' reflects humanity's love of categorization and progression – we instinctively create hierarchies and stages in everything from language learning to chemical reactions. Interestingly, intermediate students often experience the most frustration because they're aware enough to know what they don't know, unlike beginners who enjoy blissful ignorance.
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