मूर्धन्य a. [मूर्ध्नि भवः यत्]1 Being in or on the head. 2 Cerebral or lingual, a term applied to the letters ऋ, ॠ, ट्, ठ्, ड्, ढ्, ण्, र्, and ष्; ऋटुरषाणां मूर्धा. 3 Chief, pre-eminent, most excellent.