संस्‍कृतशब्‍दकोशः

कल्कि

विष्णु का अन्तिम तथा दशम अवतार

the tenth and last incarnation of vishnu

Monier–Williams

कल्कि — {kalki} m. N. of the tenth incarnation of Vishṇu when he is to appear mounted on a white horse and wielding a drawn sword as destroyer of the wicked (this is to take place at the end of the four Yugas or ages) MBh. &c