Diaphragm
n
1 (Anatomy) any separating membrane, esp. the dome-shaped muscular partition that separates the abdominal and thoracic cavities in mammals
Related adj → phrenic
2 a circular rubber or plastic contraceptive membrane placed over the mouth of the uterine cervix before copulation to prevent entrance of sperm
3 any thin dividing membrane
4 (Also called) stop a disc with a fixed or adjustable aperture to control the amount of light or other radiation entering an optical instrument, such as a camera
5 a thin disc that vibrates when receiving or producing sound waves, used to convert sound signals to electrical signals or vice versa in telephones, etc.
6 (Chem)
a a porous plate or cylinder dividing an electrolytic cell, used to permit the passage of ions and prevent the mixing of products formed at the electrodes
b a semipermeable membrane used to separate two solutions in osmosis
7 (Botany) a transverse plate of cells that occurs in the stems of certain aquatic plants
(C17: from Late Latin diaphragma, from Greek, from dia- + phragma fence)
♦ diaphragmatic adj
♦ diaphragmatically adv
iris diaphragm
n an adjustable diaphragm that regulates the amount of light entering an optical instrument, esp. a camera. It usually consists of a number of thin metal leaves arranged so that they open out into an approximately circular aperture, (Sometimes shortened to) iris
diaphragm
(Science: anatomy) The thin muscle below the lungs and heart that separates the chest from the abdomen. Electro-acoustic transducer that vibrates to receive or produce sound waves.A mechanical device in a camera that controls size of aperture of the lens; the new cameras adjust the diaphragm automatically.(anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration.A contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix.Tissue found in mammals that can be found around the lungs, which plays a role in breathing.
Diaphragm (muscle): The muscle that separates the chest (thoracic) cavity from the abdomen. The diaphragm is the main muscle of respiration. Contraction of the diaphragm muscle expands the lungs during inspiration when one is breathing air in. We rely heavily on the diaphragm for our respiratory function so that when the diaphragm is impaired, it can compromise our breathing. The nerve that controls the diaphragm is the phrenic nerve, which originates at vertebral level C3-C5. During development the diaphragm moves down and drags the phrenic nerve with it.
di·a·phragm (d-frm)
n.
1. Anatomy A muscular membranous partition separating the abdominal and thoracic cavities and functioning in respiration. Also called midriff.
2. A membranous part that divides or separates.
3. A thin disk, especially in a microphone or telephone receiver, that vibrates in response to sound waves to produce electric signals, or that vibrates in response to electric signals to produce sound waves.
4. A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse.
5. A disk having a fixed or variable opening used to restrict the amount of light traversing a lens or optical system.
[Middle English diafragma, from Late Latin diaphragma, midriff, from Greek, partition, from diaphrassein, to barricade : dia-, intensive pref.; see dia- + phrassein, phrag-, to enclose.]
dia·phrag·matic (-frg-mtk) adj.
dia·phrag·mati·cal·ly ad.
Thank you
Asraful
n
1 (Anatomy) any separating membrane, esp. the dome-shaped muscular partition that separates the abdominal and thoracic cavities in mammals
Related adj → phrenic
2 a circular rubber or plastic contraceptive membrane placed over the mouth of the uterine cervix before copulation to prevent entrance of sperm
3 any thin dividing membrane
4 (Also called) stop a disc with a fixed or adjustable aperture to control the amount of light or other radiation entering an optical instrument, such as a camera
5 a thin disc that vibrates when receiving or producing sound waves, used to convert sound signals to electrical signals or vice versa in telephones, etc.
6 (Chem)
a a porous plate or cylinder dividing an electrolytic cell, used to permit the passage of ions and prevent the mixing of products formed at the electrodes
b a semipermeable membrane used to separate two solutions in osmosis
7 (Botany) a transverse plate of cells that occurs in the stems of certain aquatic plants
(C17: from Late Latin diaphragma, from Greek, from dia- + phragma fence)
♦ diaphragmatic adj
♦ diaphragmatically adv
iris diaphragm
n an adjustable diaphragm that regulates the amount of light entering an optical instrument, esp. a camera. It usually consists of a number of thin metal leaves arranged so that they open out into an approximately circular aperture, (Sometimes shortened to) iris
diaphragm
(Science: anatomy) The thin muscle below the lungs and heart that separates the chest from the abdomen. Electro-acoustic transducer that vibrates to receive or produce sound waves.A mechanical device in a camera that controls size of aperture of the lens; the new cameras adjust the diaphragm automatically.(anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration.A contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix.Tissue found in mammals that can be found around the lungs, which plays a role in breathing. Diaphragm (muscle): The muscle that separates the chest (thoracic) cavity from the abdomen. The diaphragm is the main muscle of respiration. Contraction of the diaphragm muscle expands the lungs during inspiration when one is breathing air in. We rely heavily on the diaphragm for our respiratory function so that when the diaphragm is impaired, it can compromise our breathing. The nerve that controls the diaphragm is the phrenic nerve, which originates at vertebral level C3-C5. During development the diaphragm moves down and drags the phrenic nerve with it.
di·a·phragm (d-frm)
n.
1. Anatomy A muscular membranous partition separating the abdominal and thoracic cavities and functioning in respiration. Also called midriff.
2. A membranous part that divides or separates.
3. A thin disk, especially in a microphone or telephone receiver, that vibrates in response to sound waves to produce electric signals, or that vibrates in response to electric signals to produce sound waves.
4. A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse.
5. A disk having a fixed or variable opening used to restrict the amount of light traversing a lens or optical system.
[Middle English diafragma, from Late Latin diaphragma, midriff, from Greek, partition, from diaphrassein, to barricade : dia-, intensive pref.; see dia- + phrassein, phrag-, to enclose.]
dia·phrag·matic (-frg-mtk) adj.
dia·phrag·mati·cal·ly ad.
Thank you
Asraful
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