Tortoise-shell is a material that has been used for centuries in various industries, including fashion and interior design. It has a distinctive pattern that is reminiscent of a tortoise's shell. However, due to ethical concerns, tortoise-shell is now banned in many countries. Therefore, alternative materials are being used to imitate the look of tortoise-shell. Some of the synonyms used for tortoise-shell include faux tortoise-shell, acetate, and resin. These materials are more sustainable and ethical, making them a popular choice today. Additionally, they come in a wide range of colors, textures, and patterns to suit different tastes and preferences.