- See Siamese cat
characteristic of, relating to, or being a conjoined twin
- another word for Thai
WordReference Random House Unabridged Dictionary of American English © 2026
Si•a•mese
(sī′ə mēz′, -mēs′),USA pronunciation adj., n., pl. -mese.
adj.
n.
adj.
- Language Varietiesof or pertaining to Siam, its people, or their language.
- Language VarietiesThai (def. 3).
- twin;
closely connected;
similar. - Informal Termsdual;
combined;
twofold or two-way:a Siamese sprinkler.
n.
- Language Varietiesa native of Siam.
- Language VarietiesThai (def. 2).
- Dog and Cat BreedsSee Siamese cat.
- (usually l.c.) a standpipe placed outside a building close to ground level, having two or more openings so that fire engines can pump water to the sprinkler system of the building.
- Siam + -ese 1685–95
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