Coriander seed, which are actually the dried fruit of the coriander plant, is used as a spice. Typically used ground, coriander seed has a spicy, citrus flavor. Coriander seed is used extensively in Indian, Middle Eastern and Asian cuisines. Whole coriander seed is sometimes used in pickling and brining. Coriander was mentioned in the Bible, and the seeds have been found in ruins dating back to 5000 B.C. Its name comes from the Greek word koris, meaning a stink bug. This is likely a reference to the strong aroma given off by the cilantro plant leaves when they are bruised.