Siamese twins (linguistics) conjoined twins from Siam. In the context of the English language, this word was first used and popularised by H. W. Fowler, a renowned lexicographer. The most common conjunctions used in a phrase that constitutes Siamese twins are "and" or "or." The structure of any Siamese twins phrase has words that are related in some way. The words constituting a Siamese twins phrase may be synonyms, antonyms, include alliterations or similar-sounding words that often rhyme. Other varieties of Siamese twins may also be possible. Examples below are split into various tables; some may belong in more than one table but
TWINS TWINS Two Wide-Angle Imaging Neutral-Atom Spectrometers (TWINS) are a pair of NASA instruments aboard two United States National Reconnaissance Office satellites in Molniya orbits. TWINS was designed to provide stereo images of the Earth's ring current. The first instrument, TWINS-1, was launched aboard USA-184 on 28 June 2006. TWINS-2 followed aboard USA-200 on March 13, 2008. Each instrument consists of an energetic neutral atom imager and a Lyman alpha detector. The ENA imager provides indirect remote sensing of the ring current ions, and the Lyman alpha detector gives a measure of the neutral hydrogen cloud about the Earth, known as