Bulma (ブルマ Buruma, lit. "Blooma") is an engineer, the second daughter of Capsule Corporation founder Dr. Brief and his wife Bikini,[14] the younger sister of Tights[15] and Goku's first friend.[1][4] After dating Yamcha in their teen years,[16][17] she would marry Vegeta in adulthood and give birth to their two children, Trunks and Bulla. A technological genius who can turn her talents to almost any field and understand alien technology near-effortlessly, her inventions have been invaluable to Goku and the rest of the Dragon Team. Her most notable invention is the Dragon Radar.
Bulma is the most significant female character in the series. Aside from Goku himself, Bulma is the single longest-running character in the entire franchise, being introduced in the first Dragon Ball chapter and episode, maintaining a prominent role until the end of the series.