asterionella
noun
as·te·ri·o·nel·la
1
capitalized : a small genus of narrowly linear diatoms (family Fragilariaceae) arranged in stellate free-floating colonies and often causing geraniumlike or fishy odors in public water supplies
2
plural -s : a diatom of the genus Asterionella
Word History
Etymology
New Latin, from Greek asterion (neuter of asterios starry) + New Latin -ella