Definition of pumpkin spice in English:

pumpkin spice

noun

mass nounUS
  • A mixture of spices including cinnamon, nutmeg, ginger, and cloves, used especially to flavour the filling of pumpkin pies; pumpkin pie spice.

    ‘beat in pumpkin spice and heavy cream at low speed’

adjective

US
  • attributive Denoting an item of food or drink that is flavoured with pumpkin pie spice, sometimes also containing pumpkin puree.

    ‘the occasional splurge for a pumpkin spice latte’
    ‘a batch of pumpkin spice muffins’