port wine stain
US /ˌpɔːrt waɪn ˈsteɪn/
UK /ˌpɔːrt waɪn ˈsteɪn/

1.
tanda lahir wain port, tanda lahir merah
a birthmark in which a large area of the skin is a reddish-purple color, caused by a vascular anomaly (capillary malformation)
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The child had a prominent port-wine stain on her cheek.
Kanak-kanak itu mempunyai tanda lahir wain port yang menonjol di pipinya.
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Laser treatment can help lighten a port-wine stain.
Rawatan laser boleh membantu mencerahkan tanda lahir wain port.