No, coriander powder is not curry; it's a spice commonly found in curry powder.
Coriander powder is made from the ground seeds of the coriander plant. While it's a key ingredient in many curry powder blends, it's not a curry itself. "Curry" generally refers to a dish (often with a sauce) or a blend of spices used to flavor such dishes. Curry powder, particularly in the United States, is typically a blend of spices that includes coriander, along with turmeric, fenugreek, cumin, and other spices.
Therefore, coriander powder is an ingredient of curry powder, not curry itself.
