apertures
زبان مبدأ: انگلیسی
ترجمه به فارسی
- واژهنامه · Merriam-Webster Collegiate Dictionary ap·er·ture n. Pronunciation: ' ap-ə(r)- ˌ chu ̇ r, -chər, - ˌ tyu ̇ r, - ˌ tu ̇ r Function: noun Etymology: Middle English, from Latin apertura, from apertus, past participle of aperire to open Date: 15th century 1 : an opening or open space : HOLE 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