• Bengali Word নল English definition (noun) 1 species of reed. 2 tube; cylinder; pipe; barrel; rod. 3 a measure of length. 4 measuring rod. নলক (noun) any long bone of the body; to be/ tubular organ of the body. নলকূপ (noun) tube-well. নলকূপ বসানো (verb transitive) sink a tube-well. নল খাগড়া (noun) reed. নল-চালা (noun) trick of setting a rod on move, presumably by occult incantation, to detect a thief. নল চালা (verb transitive) set a rod on move to detect a thief by means of occult incantation. নলবন (noun) thicket of reed. নলাকার (adjective) tubular; cylindrical.