The story
From pro- (“earlier, prior”) + chlorophyte, from chloro- (“green”) + -phyte (“plant”).
Etymology from Wiktionary, CC BY-SA 4.0.
prochlorophyte
Today it means: a bright green cyanobacterium of the class Prochlorophyta, distinguished by the presence of both chlorophyll a and b and the lack of phycobilins (and so resembling the chloroplasts of higher plants) Full definition →