fluxion

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A noun referring to a flow or discharge of a substance or energy.

1. Flow or dischargeC1formalmedical

   A flowing or discharge of a substance, especially from the body.

   انصباب

   • The doctor observed a fluxion of fluid from the wound.
   • He suffered from a constant fluxion of nasal mucus during allergy season.
   • The medical report noted a fluxion in the lymphatic system.

   المرادفاتdischargeeffusionemissionflowfluxissueoutflowsecretion

2. Rate of change (calculus)C2formalscientific

   In Newtonian calculus, the instantaneous rate of change of a flowing quantity; a derivative.

   معدل التغير اللحظي

   • Newton introduced the concept of fluxion to describe velocity.
   • The fluxion of a curve at a point gives its slope.
   • In modern terms, fluxion corresponds to the derivative.

   المرادفاتderivativedifferential coefficient