noun a necessary condition or requirement
In philosophy, 'sine qua non' refers to an essential condition or element without which a particular thing would not exist or be possible.
In legal contexts, 'sine qua non' is used to refer to an indispensable or essential element that is required for a particular outcome or decision.
In medicine, 'sine qua non' may be used to describe a crucial factor or condition that is necessary for the success of a treatment or procedure.
In business, 'sine qua non' can refer to a key requirement or essential component that is fundamental to the success of a project, strategy, or venture.
In writing, 'sine qua non' may be used to refer to an essential element or factor that is indispensable for a particular work or argument to be successful.
Psychologists may use 'sine qua non' to describe a fundamental concept or principle that is considered necessary for understanding a particular behavior or psychological phenomenon.
Lawyers may use 'sine qua non' to emphasize a crucial element or condition that must be present in order to establish a legal claim or defense.
Doctors may use 'sine qua non' to describe a key symptom or diagnostic criterion that is essential for identifying a specific medical condition or disease.
Engineers may use 'sine qua non' to refer to a critical component or requirement that must be met in order to ensure the proper functioning of a system or design.