blotch
US /blɑːtʃ/
UK /blɑːtʃ/

1.
mancha, borrão
an irregular patch or spot of color or discoloration
:
•
He had a red blotch on his arm after touching the plant.
Ele tinha uma mancha vermelha no braço depois de tocar na planta.
•
The old painting had several dark blotches.
A pintura antiga tinha várias manchas escuras.