| 6 | |
| 7 | == Project name == |
| 8 | |
| 9 | From [http://www.webster.com/ Merriam-Webster Online]: |
| 10 | |
| 11 | Main Entry: '''ap·er·ture''' (sounds like [http://cougar.eb.com/sound/a/apertu01.wav this])[[br]] |
| 12 | Pronunciation: 'ap-&(r)-"chur, -ch&r, -"tyur, -"tur[[br]] |
| 13 | Function: noun[[br]] |
| 14 | Etymology: Middle English, from Latin apertura, from apertus, past participle of aperire to open[[br]] |
| 15 | 1 : an opening or open space : HOLE[[br]] |
| 16 | 2 a : the opening in a photographic lens that admits the light b : the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument c : the diameter of the objective lens or mirror of a telescope |