purpuric

English

From Latin purpura (“purple”), from Ancient Greek πορφύρα (porphúra). The medical sense is from the English purpura (“the appearance of purple discolorations on the skin”). By surface analysis, purpura +‎ -ic.

purpuric (comparative more purpuric, superlative most purpuric)

(medicine) Pertaining to or affected with purpura (skin discoloration from blood inside it).
- 2003, Christine Léauté-Labrèze and Alain Taïeb, Diagnosis and management of Stevens Johnson syndrome, in Recent Advances in Pediatrics, Volume 20 (edited by Tim J David), Royal Society of Medicine Press, page 140:
  After 1–14 days, skin eruption occurs abruptly, consisting of symmetrical purpuric macules which progress to blisters and areas of epidermal necrosis...
(medicine, archaic) Purple or purplish (of spots which appear on the skin; regardless of their cause); Synonym of purpureal.
(chemistry, not comparable) purple in colour; derived from or forming a substance which is purple; especially:
1. Derived from or forming purpuric acid.
  purpuric acid
  
  a purpuric salt