Which term indicates a tempo that is slightly slower than allegro but faster than andante?

Allegretto is the term that denotes a tempo that is slightly slower than allegro but faster than andante. In musical terminology, allegro typically indicates a fast, lively tempo, while andante suggests a moderate walking pace. Andantino often suggests a tempo that is slightly faster than andante, but it can vary. On the other hand, adagio refers to a slow tempo, and presto indicates a very fast tempo. Thus, allegretto is the correct term that fits the description given in the question, as it occupies the middle ground between allegro and andante in terms of tempo.