| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| 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. |
guanosine gua·no·sine (gwä'nə-sēn', -sĭn)
n.
A nucleoside consisting of guanine and ribose.