velamen defined in 1951 yearvelamen - velamen;
velamen - Water-absorbing tissue occurring on the outside of aerial roots in certain plants, e.g. epiphytic orchids, consisting of several layers of dead cells often with spirally thickened and perforated walls, which act as a sponge, soaking up water that runs over it.
near velamen in Knolik
definition of word "velamen" was readed 1978 times