nonuplet

This term is highly specialized and rarely encountered in everyday conversation, appearing primarily in medical reports or advanced music theory. In a biological context, it describes an extremely rare occurrence of multiple births, following the pattern of terms like triplet or quadruplet.

In musical notation, a nonuplet is a type of tuplet. It indicates that nine notes should be played in the time normally occupied by a smaller number of notes, creating a rhythmic tension or a fluid, rapid sequence of sounds.