Final answer:
Tulle is the lightweight, machine-made net used in bridal veils, dress goods, and formal wear. It is appreciated for its ability to hold a shape while offering a sheer appearance and is often used to add volume or as an overlay for a soft look.
Step-by-step explanation:
The fine lightweight, machine-made net that is commonly used in bridal veils, dress goods, and formal wear is called tulle. This fabric is known for its fine mesh-like appearance, which allows it to hold a shape while still offering a delicate and sheer look.
Tulle is often used to add volume under skirts and dresses or as an overlay to create a soft, ethereal effect in garments and other decorations.