|Fleming, Sir John Ambrose 1849-1945.
British physicist and electrical engineer who devised the first electron tube in 1904. His invention was essential to the development of radio, television, and early computer circuitry. Fleming also helped develop electric devices designed for large-scale use, such as the electric lamp.
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|