fluxion

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

ruСуществительное, обозначающее поток или выделение вещества или энергии.esSustantivo que denota un flujo o descarga de materia o energía, o el acto de fluir; también se refiere a una cantidad variable en el cálculo infinitesimal.frNom désignant un flux ou une décharge de matière ou d'énergie, ainsi que le fait de s'écouler ou de se répandre.deSubstantiv, das einen Fluss, ein Strömen oder eine Absonderung von Materie, Energie oder Teilchen bezeichnet; in der Mathematik (veraltete Bezeichnung) die Ableitung einer Funktion bzw. das Fließen einer Größe.ptSubstantivo que designa um fluxo, escoamento ou emissão de uma substância ou energia; em matemática, designa a derivada de uma quantidade variável em relação ao tempo, termo histórico usado por Newton.zh名词，指流动、流出或物质与能量的排出；在数学史上指牛顿使用的流数（微积分中的导数）。arاسم يدل على سيلان أو انصباب شيء ما، أو على معدل التغير في الرياضيات في سياق حساب التفاضل.

1. Flow or discharge C1 formal medical

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

   • 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.

   ruИстечениеesFlujo o descargafrÉcoulement ou fluxdeAusflussptFluxãozh流出arانصباب

   Synonymes: dischargeeffusionemissionflowfluxissueoutflowsecretion

2. Rate of change (calculus) C2 formal scientific

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

   • 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.

   ruФлюксияesFluxión (cálculo)frFluxion (calcul infinitésimal)deFluxionptFluxãozh流数arمعدل التغير اللحظي

   Synonymes: derivativedifferential coefficient

• fluxions plural form
• fluxions' possessive plural form
• fluxion's possessive singular form