This is the simplest type of nebula; it is characterised by extreme faintness, and seems composed of matter of the utmost tenuity.
"The Story of the Heavens"
Robert Stawell Ball
In spite of the tenuity of my purse I felt obliged to give my friends this mark of my gratitude for the kindness they had lavished on me.
"The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons"
Jacques Casanova de Seingalt
The white heat and the white light come from the increase of wave motion in this ether, and this ether, absolutely imponderable, of a tenuity inconceivable, possesses elasticity greater and more powerful than that of coiled steel.
"Editorials-from-the-Hearst-Newspapers"
Brisbane, Arthur