| 释义 |
me·rid·i·on
\mə̇ˈridēˌän\ noun
Usage: capitalized
Etymology: New Latin, from Greek, diminutive of merid-, meris part, portion — more at merit
: a genus (coextensive with the family Meridionaceae) of freshwater pennate diatoms having cuneate cells arranged in flat, fan-shaped, or spiral colonies and often causing odors in public water supplies |