- The definition of purulent is full of pus or like pus.
An example of something purulent is an open wound that's not healing properly.
Origin of purulentFrench ; from Classical Latin purulentus ; from pus (gen. puris), matter, pus
Origin of purulentMiddle English purulente, from Old French purulent, from Latin pūrulentus, from pūs, pūr-, pus; see p&ubremac;- in Indo-European roots.
(comparative more purulent, superlative most purulent)
Latin purulentus, from pus, puris, pus, matter.