Final answer:
A plait of hair worn hanging down one's back is called a tress. Tress represents a specific hairstyle with cultural significance and symbolism.
Step-by-step explanation:
A plait of hair worn hanging down one's back is called a tress. Tress is a term often used to describe a single braid or plait of hair. It represents a specific hairstyle, typically worn by females, and can be associated with different cultural practices and symbolism. In African and African diasporic cultures, hair-grooming practices such as braiding are often social activities and have cultural significance. Throughout history, hairstyles and hair grooming have been used to symbolize social status, tribal belonging, and even spiritual beliefs.