pulse
noun /pʌls/
  /pʌls/
Idioms - [usually singular] the regular beat of the heart as it sends blood around the body, that can be felt in different places, especially on the inside part of the wrist; the number of times the heart beats in a minute
- a strong/weak pulse
 - an abnormally high pulse rate
 - The doctor took/felt my pulse.
 - Fear sent her pulse racing (= made it beat very quickly).
 
Extra ExamplesTopics Bodyc1- My at-rest pulse rate is usually about 80 beats per minute.
 - She felt her pulse quicken as she recognized the voice.
 - She reached in through the driver's broken window and checked for a pulse.
 - There was little to quicken the pulse in his dull routine.
 
Oxford Collocations Dictionaryadjective- fast
 - racing
 - rapid
 - …
 
- check
 - feel
 - take
 - …
 
- beat
 - quicken
 - race
 - …
 
- rate
 
 - a strong regular beat in music synonym rhythm
- the throbbing pulse of the drums
 
 - a single short increase in the amount of light, sound or electricity produced by a machine, etc.
- pulse waves
 - sound pulses
 
 - pulses[plural] the seeds of some plants that are eaten as food, such as peas and lentils
- Pulses are a good source of protein.
 
 
Word Originnoun senses 1 to 3 late Middle English: from Latin pulsus ‘beating’, from pellere ‘to drive, beat’. noun sense 4 Middle English: from Old French pols, from Latin puls ‘porridge of meal or pulse’; related to pollen.
Idioms 
have/keep your finger on the pulse (of something) 
- to always be aware of the most recent developments in a particular situation