Definitions of tang:

• noun:   any of various coarse seaweeds
• noun:   the imperial dynasty of China from 618 to 907
• noun:   any of various kelps especially of the genus Laminaria
• noun:   brown algae seaweed with serrated edges
• noun:   common black rockweed used in preparing kelp and as manure
• noun:   a tart spiciness
• noun:   the taste experience when a savoury condiment is taken into the mouth
• name:  A surname (common: 1 in 16666 families; popularity rank in the U.S.: #2126)