diatomin
(daɪˈætəmɪn)
[f. as prec. + -in.]
The yellowish-brown or buff-coloured pigment, which colours diatoms and the brown algæ.
| 1882 Vines Sachs' Bot. 260 [In diatoms] the green colouring matter is concealed, as in the chlorophyll-granules of the Fucaceæ, by a buff-coloured substance, Diatomin or Phycoxanthin. |