Definition of pustulate in English:

pustulate

verb

[NO OBJECT]
  • Form into pustules.

    ‘pustulating epidermal ulcers’
    • ‘Brush your fingers on a single leaf and watch your hand burst into pustulating blisters.’
    • ‘Her body slowly becomes a paralyzed, pustulated, corpulent emitter of foul gas.’
    • ‘His face and body is a pustulating mass of burst boil craters and scaley raw flesh.’

adjective

Biology
  • Having or covered with pustules.

    ‘the surface is coarsely pustulate’
    • ‘External grooves, pits, and perforations appear much as they do in the plates, and the base is slightly expanded and pustulate.’
    • ‘The base of the plate is usually slightly expanded and may have a lumpy, pustulate appearance.’

Origin

Late Middle English (as an adjective): from late Latin pustulatus, past participle of pustulare to blister from pustula pustule.