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- DictionaryPe·te·chi·a/pəˈtēkēə/
noun
- 1. a small red or purple spot caused by bleeding into the skin.
noun
Small red or purple spot on the skin or conjunctiva
A petechia is a small red or purple spot that can appear on the skin, conjunctiva, retina, and mucous membranes which is caused by haemorrhage of capillaries. The word is derived from Italian petecchia 'freckle', of obscure origin. It refers to one of the three descriptive types of hematoma differentiated by size, the other two being ecchymosis (>1cm in diameter) and purpura (4-10mm in diameter). ... Wikipedia