diaphragm

• Muscle en forme de dôme séparant la cavité thoracique de la cavité abdominale, jouant un rôle clé dans la respiration ; désigne aussi un contraceptif ou une partie de divers dispositifs mécaniques.

A dome-shaped muscular partition separating the thoracic cavity from the abdominal cavity, playing a key role in breathing; also refers to a contraceptive device or a part of various mechanical devices.

1. Anatomical muscleB2formalmedical

   A dome-shaped sheet of muscle and tendon that separates the chest cavity from the abdominal cavity and plays a key role in breathing.

   diaphragme (muscle)

   • The diaphragm contracts and flattens during inhalation.
   • A hiccup is caused by a sudden spasm of the diaphragm.
   • Deep breathing exercises strengthen the diaphragm.

2. Mechanical componentC1formaltechnical

   A flexible membrane or disc that converts mechanical or acoustic energy into motion, used in pumps, valves, microphones, and speakers.

   Membrane (composant mécanique)

   • The microphone's diaphragm vibrates when sound waves hit it.
   • A rubber diaphragm in the pump regulates fluid flow.
   • The pressure gauge uses a metal diaphragm to measure force.

   Synonymesdiscmembrane

3. Contraceptive deviceC1formalmedical

   A dome-shaped silicone cup inserted into the vagina to cover the cervix and prevent pregnancy.

   Diaphragme contraceptif

   • She chose a diaphragm as her preferred method of contraception.
   • The diaphragm must be fitted by a healthcare professional.
   • Using a diaphragm with spermicide increases its effectiveness.

   Synonymespessary