A small, black, peppery seed used to flavor.

The small black seeds of an annual plant "Nigella sativa" related to love-in-a-mist and resembling onion seeds. They have a delicate, slightly peppery flavor and are used in Indian spice mixtures and to flavor bread in India and the Middle East. Not to be confused with black cumin.

The small, peaked, jet-black Nigella sativa seed is...

See Kalonji.

any plant of the genus Nigella.