diaphragms
زبان مبدأ: انگلیسی
ترجمه به فارسی
- واژهنامه · Merriam-Webster Collegiate Dictionary di·a·phragm n. Pronunciation: ' dī-ə- ˌ fram Function: noun Etymology: Middle English diafragma, from Late Latin diaphragma, from Greek, from diaphrassein to barricade, from dia- + phrassein to enclose Date: 14th century 1 : a body partition of muscle and connective tissue specifically : the partition separating the chest and abdominal cavities in mammals 2 : a dividing membrane or thin partition especially in a tube 3 a : a more or less rigid partition in the body or shell of an invertebrate b : a transverse septum in a plant stem 4 : a device that limits the aperture of a lens or optical system ― compare IRIS DIAPHRAGM 5 : a thin flexible disk (as in a microphone or loudspeaker) that vibrates when struck by sound waves or that vibrates to generate sound waves 6 : a molded cap usually of thin rubber fitted over the uterine cervix to act as a mechanical contraceptive barrier –di·a·phrag·mat·ic \ ˌ dī-ə-frə(g)- ' ma-tik, - ˌ frag-\ adjective –di·a·phrag·mat·i·cal·ly \- ' ma-ti-k(ə-)lē\ adverb ]]> iris diaphragm Function: noun Date: 1867 : an adjustable diaphragm of thin opaque plates that can be turned by a ring so as to change the diameter of a central opening usually to regulate the aperture of a lens iris diaphragm]]>