(usu sing 通常作单数) (a) regular beating of the arteries as blood is pumped through them by the heart, esp as felt at the wrist 脉搏: have a low, irregular, strong, weak, etc pulse 脉搏很慢﹑ 不规则﹑ 很强﹑ 很弱等 * His pulse raced as he faced the armed intruder. 他面对携带武器的闯入者, 顿时血脉偾张. * [attrib 作定语] one's `pulse rate, ie the number of times per minute that one's heart beats, as felt at the wrist 脉率（按脉所得每分钟的心跳数）. (b) regular beat in music （音乐的）节拍: the throbbing pulse of the drums 鼓的打击节拍. 
(a) single vibration of sound, light, electric current, etc （声波﹑ 光波﹑ 电流等的）一次脉动: The machine emits sound pulses. 这台机器可发出声脉冲信号. (b) (usu sing 通常作单数) series of these 连续的脉动; 脉冲波: The machine is operated by an electronic pulse. 这台机器由电子脉冲信号操纵. 
(idm 习语) feel/take sb's `pulse find out the speed of the heartbeat by feeling the pulse in the wrist and countingthe number of beats per minute 诊脉; 按脉; 把脉. have/keep one's finger on the pulse => finger.> pulse v (a) [I, Ipr] ~ (through sth) move with strong regular movements; beat or throb 强烈而有规律地跳动; 搏动; 振动: The news sent the blood pulsing through his veins. 这消息使他的血液都沸腾起来了. * (fig 比喻) the life pulsing through a great city 大都市里紧张繁忙的生活. (b) [I] = pulsate 1.