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Definition of diaphragm:

  1. A calcareous plate which divides the cavity of certain shells into two parts.
  2. A dividing membrane or thin partition, commonly with an opening through it.
  3. A partition in any compartment, for various purposes.
  4. 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. The muscular and tendinous partition separating the cavity of the chest from that of the abdomen; the midriff.

Synonyms:

stoppage, plosive speech sound, block, barrier method, birth control, stay, plosive, condom, bronchus, airway, abortion, coil, full point, catch, beeper, button, calling card, plosive consonant, contraception, artificial respiration, stop consonant, bad breath, layover, bronchiole, contraceptive, card, stopover, breath, period, occlusion, halt, breathing, stop, cell, check, 3G, midsection, closure, blockage, blow, middle, bronchial tube, cameraphone, bleeper, abortionist, abortionist, answering machine, occlusive, hitch, full stop, arrest, midriff, contraceptive diaphragm, point, 4G, pessary, asphyxia.

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