Alternative spelling of sine qua non.

a Fourier series consisting solely of sine functions

plural of sine qua non

plural of sine qua non

herpes zoster without the characteristic rash

(law) indefinite adjournment.

Alternative spelling of nulla pœna sine lege

(law) The principle that a person shall receive no punishment unless he has committed an offence as explicitly defined in a law.

A position that requires no work but still gives an ample payment; a cushy job. / (historical) An ecclesiastical benefice without the care of souls.

Requiring no work for an ample reward. In general this usage is tautological and should be avoided. / Having the appearance of functionality without being of any actual use or purpose.