Anything that is the prescribed or accepted order is termed ‘anuloma’ as opposed to ‘pratiloma’ (‘opposed to the hair or grain’) which indicates the reverse order. The word is widely used with regard to marriages and castes. An anuloma marriage is one in which the male is of a higher caste than the female. Offsprings of such unions belong to a set of castes called anuloma castes.
In the pratiloma marriage the male is of a lower caste than the female and the offsprings belong to pratiloma castes.