(ˌ)dərˈmad.əˌsōm, ˈdərməd.əˌ- noun
( -s )
Etymology: International Scientific Vocabulary dermat- + -some; originally formed as German dermatosom
: one of the ranked particulate elements joined by cytoplasm that in one theory of cell-wall structure are held to make up the plant cell wall ; broadly : a structural unit of cellulose in a plant cell wall