Definitions

1. verb

to cause petechiae, especially to produce small spots or patches due to bleeding into the skin or mucous membranes

“The disease petechiated her skin, causing numerous small spots to appear.”

2. noun

a substance causing petechiae

“The toxic substance petechiated her skin, resulting in a rash.”

3. verb (transitive)

to cause petechiae in

“The allergen petechiated her skin, causing a severe rash.”