|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.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|Bunsen (bŭn'sən) Pronunciation Key
German chemist who with Gustav Kirchhoff developed the technique of spectroscopic analysis, leading to their discovery of the elements cesium and rubidium. Bunsen also invented various kinds of laboratory equipment, although the Bunsen burner itself was probably constructed on an earlier design by Michael Faraday.