dermatosome

\(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