অৱবাহিকা (Assamese) [ Roman: o.bo.ba.hi.ka]
    Contributed by: Rupankar Mahanta on 2006-12-22
    1. (Abstract Noun-Neuter) The entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet নদীৰ দুয়ো পাৰৰ যি ভূ-ভাগৰ পৰা পানী বৈ আহি নদীত পৰে