-ˌkrisəˈdā(ˌ)lēz noun plural
Usage: capitalized
Etymology: New Latin, from Rhizochrysid-, Rhizochrysis, genus of yellow-green algae (from rhiz- + Greek chrysid-, chrysis vessel of gold) + -ales — more at chrysis
: an order of yellow-green algae (class Xanthophyceae) that have the vegetable cells either amoeboid or with temporary flagellated stages but in other respects resemble the Rhizochloridales