Portuguese

Adjective

siamês m ‎(feminine singular siamesa, masculine plural siameses, feminine plural siamesas, comparable)

1. (historical) Siamese (of, from or relating to Siam)

Noun

siamês m (plural siameses, feminine siamesa, feminine plural siamesas)

1. (historical) Siamese (person from Siam)
2. Siamese cat (breed of domestic cat)