/bʌlb ||; bʌlb/noun[C] 1 (also light bulb) the glass part of an electric lamp that gives out light 灯泡: The bulb's gone (= it no longer works) in this lamp. 这灯的灯泡坏了。 ☞picture at light 见 light 插图
2 the round root of certain plants （植物的）鳞茎，球茎，球根: a tulip bulb 郁金香的鳞茎 ☞pictures at flower and on page C2 见flower及C2页插图