Arrowroot (noun)

1. A starchy substance obtained from the rhizome of a tropical American plant and used as a food thickener.
2. The rhizome of the Maranta arundinacea plant, from which arrowroot starch is obtained.
3. A type of tropical plant that is the source of arrowroot starch.

Origin:

The word arrowroot is derived from the west indian name for maranta arundinacea, the plant from which the starch is obtained.

Examples:

1. Arrowroot is commonly used in baking as a thickener for sauces, puddings and gravies.
2. The arrowroot plant is native to the West Indies.
3. Arrowroot is a good alternative to cornstarch for people who are sensitive to gluten.
4. Arrowroot is a staple food in some Caribbean countries.
5. Arrowroot biscuits are a popular snack in many countries.