Curry Powder is a earthy, yet fragrant mix of spices, and is used for a number of dishes, both meat and vegetarian. This blend of spices is freely available in mainstream supermarkets, and popularly used as a subsitute for a more generic version of curry powder. The supermarket versions usually come in a hot blend or a milder version.
A spice is a dried seed, fruit, root, bark, leaf, or vegetative substance used in nutritionally insignificant quantities as a food additive for the purpose of flavour, colour, or as a preservative that kills harmful bacteria or prevents their growth.
Many of these substances are also used for other purposes, such as medicine, religious rituals, cosmetics, perfumery or eating as vegetables. For example, turmeric is also used as a preservative; liquorice as a medicine; garlic as a vegetable. In some cases they are referred to by different terms. In the kitchen, spices are distinguished from herbs, which are leafy, green plant parts used for flavouring purposes.