"\u015A\u0101stra (\u0936\u093E\u0938\u094D\u0924\u094D\u0930, IPA: [\u0283a\u02D0st\u032Ar\u0259]) is Sanskrit for \"rules\" in a general sense. The word is generally used as a suffix in the context of technical or specialized knowledge in a defined area of practice in modern neologisms, e.g. bhautikashastra \"physics\", rasayanashastra \"chemistry\", j\u012Bvashastra \"biology\", vastushastra \"architectural science\", shilpashastra \"science of sculpture\", arthashastra \"economics\" and n\u012Btishastra \"political science\"."@en .