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Results for diaphragm

Definitions of diaphragm:

part of speech: noun

Muscles separating thoracic and abdominal cavities.

part of speech: noun

1. Midriff, phren, the musculomem- branous partition between the abdominal and thoracic cavities; it is two- dome shaped with concavities toward the abdomen; the upper surface is in relation with the heart and lungs, the under surface with the liver, stomach, and spleen. 2. A thin disc pierced with a hole of definite size, used in a microscope, camera, or other optical instrument in order to shut out the marginal rays of light, thus giving a more direct illumination.

Usage examples for diaphragm:

  • N N. The diaphragm in section. "Surgical Anatomy", Joseph Maclise
  • The diaphragm is relaxed and curved upward, as in expiration. "Resonance in Singing and Speaking", Thomas Fillebrown
  • The diaphragm however, is not raised by the contraction of its own muscles, but is pushed up by the organs beneath. "Physiology and Hygiene for Secondary Schools", Francis M. Walters, A.M.

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