Sold both as seeds and a powder. Don't be put off by the fact that it has a fragrance reminiscent of human body odor. Curry can be any one of a variety of spice mixtures. For years, Americans have thought of curry as a specific mixture of spices, like, for example, Italian Seasonings. Fortunately, a variety of curry powders and pastes have begun to crop up in the ethnic-foods section of supermarkets.
Different curries have different colors, flavors, and levels of spiciness.
It's a worthwhile area to explore. Because dill's flavor isn't terribly strong, fresh dill can be chopped and sprinkled as a garnish, or used whole as part of the presentation of a side of salmon. Dried dill is thoroughly uninteresting. It's a spice. It comes from a bulbous plant, related to celery, tasting like anise.