pe·te·chi·a 
(pə-tēkē-ə)
(pə-tēkē-ə)n. pl. pe·te·chi·ae (-kē-ī′)
A small purplish spot on a body surface, such as the skin or a mucous membrane, caused by a minute hemorrhage and often seen in typhus.
[New Latin, from Italian petecchie, pl. of petecchia, spot on skin, perhaps from Vulgar Latin *petīcula, short for *impetīcula, diminutive of Latin impetīx, impetīc-, variant of impetīgō; see IMPETIGO.]
pe·techi·al adj.
pe·techi·ate (-ĭt) adj.