Siamese \Si`a*mese"\, a. Of or pertaining to Siam, its native people, or their language.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Siamese \Si`a*mese`\, n. sing. & pl.

1. A native or inhabitant of Siam; pl., the people of Siam.

2. sing. The language of the Siamese.

Source: Webster's Revised Unabridged Dictionary (1913)