n. A palm of one among numerous species, mostly of the genus Calamus, a few of the genus Rhapis; a ratan-palm.n. The stems of the ratan collectively as an economic material.n. A switch or stick of ratan, especially a walking-stick.To use ratan in making; cover or form with interlaced lengths of ratan.To use a ratan upon; beat with or as with a ratan-cane.