Siamese

[ sahy-uh-meez, -mees ]

/ ˌsaɪ əˈmiz, -ˈmis /

Save This Word!

Definition of Siamese

adjective

of or relating to Siam, its people, or their language.

Thai (def. 3).

twin; closely connected; similar.

Informal. dual; combined; twofold or two-way: a Siamese sprinkler.

noun, plural Si·a·mese.

a native of Siam.

Thai (def. 2).

Siamese cat.

(usually lowercase) 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.

QUIZ

GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!

Test how much you really know about regular and irregular plural nouns with this quiz.

Question 1 of 9

Which of the following nouns has an irregular plural form?

TAKE THE QUIZ TO FIND OUT

Origin of Siamese

First recorded in 1685–95; Siam + -ese

Words nearby Siamese

sialosis, sialostenosis, sialosyrinx, Siam, siamang, Siamese, Siamese cat, Siamese fighting fish, Siamese twin, Siamese twins, Sian

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use Siamese in a sentence

Liu’s cats, one Siamese cat and two exotic shorthair cats, have been with her for around six years.
A Chinese city cited Covid-zero policy to justify euthanizing three Covid-positive cats|Jane Li|September 29, 2021|Quartz
And now the latest character in the saga is Choupette, a 9-month-old Siamese kitten upon whom he fastidiously dotes.
7 Facts to Know About Karl Lagerfeld’s Siamese Cat, Choupette|Isabel Wilkinson|June 7, 2012|DAILY BEAST
This tallies with the description given by Mr. Darwin of the Malayan and also the Siamese cats.
Our Cats and All About Them|Harrison Weir
The Siamese of Siam, the kingdom of which Bankok is the capital, form but a fraction of this great stock.
The Ethnology of the British Colonies and Dependencies|Robert Gordon Latham

The Siamese appellation is Ming-môn; apparently the native name in a state of composition.
The Ethnology of the British Colonies and Dependencies|Robert Gordon Latham
An imperfect Buddhism, and an unappreciated alphabet of Siamese origin, are the chief phenomena of their civilization.
The Ethnology of the British Colonies and Dependencies|Robert Gordon Latham
He was the earliest designer of iron steamers in the United States, building the Siamese in 1838.
A History of the Growth of the Steam-Engine|Robert H. Thurston

British Dictionary definitions for Siamese

Siamese

/ (ˌsaɪəˈmiːz) /

noun plural -mese

See Siamese cat

adjective

characteristic of, relating to, or being a Siamese twin

adjective, noun

another word for Thai

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012