diaphragms
plural of diaphragm
Source: Wiktionary
Di"a*phragm, n. Etym: [L. diaphragma, Gr. fareire to stuff: cf. F. diaphragme. See Farce.]
1. A dividing membrane or thin partition, commonly with an opening through it.
2. (Anat.)
Definition: The muscular and tendinous partition separating the cavity of the chest from that of the abdomen; the midriff.
3. (Zoöl.)
Definition: A calcareous plate which divides the cavity of certain shells into two parts.
4. (Opt.)
Definition: A plate with an opening, which is generally circular, used in instruments to cut off marginal portions of a beam of light, as at the focus of a telescope.
5. (Mach.)
Definition: A partition in any compartment, for various purposes. Diaphragm pump, one in which a flexible diaphragm takes the place of a piston.
Di"a*phragm, n. Etym: [L. diaphragma, Gr. fareire to stuff: cf. F. diaphragme. See Farce.]
1. A dividing membrane or thin partition, commonly with an opening through it.
2. (Anat.)
Definition: The muscular and tendinous partition separating the cavity of the chest from that of the abdomen; the midriff.
3. (Zoöl.)
Definition: A calcareous plate which divides the cavity of certain shells into two parts.
4. (Opt.)
Definition: A plate with an opening, which is generally circular, used in instruments to cut off marginal portions of a beam of light, as at the focus of a telescope.
5. (Mach.)
Definition: A partition in any compartment, for various purposes. Diaphragm pump, one in which a flexible diaphragm takes the place of a piston.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
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