krə̇ˈsäfəd.ə noun plural
Usage: capitalized
Etymology: New Latin, from chrys- + -phyta
: a division or other category of lower plants that comprises algae with pigments localized in yellowish green to golden brown chromatophores and usually with a cell wall made up of overlapping halves and that includes the classes Xanthophyceae, Chrysophyceae, and Bacillariophyceae