Sinuously– adverb
Definition:having many twists and turns
moving and bending in a smooth and attractive way
of a serpentine or wavy form
marked by strong lithe movements
http://www.merriam-webster.com/dictionary/sinuous
The word was found in the New York Times Online Newspaper on Tuesday December 2,2014. The word is used in the first paragraph http://www.nytimes.com/2014/12/03/nyregion/the-4-billion-train-station-at-the-world-trade-center.html?_r=0. The word is found in the start “With its long steel wings poised sinuously above the National September 11 Memorial in Lower Manhattan, the World Trade Center Transportation Hub has finally assumed its full astonishing form, more than a decade after it was conceived.”
The word is being used as more marked by strong lithe movements, in the reading the sentence describes the memory of 9/11. The word is being used in the sentence as a way to describes a strong appearance it represents.