| 释义 |
me·th·o·ni·um
\mə̇ˈthōnēəm\ noun
(-s)
Etymology: New Latin, from meth- + -onium
: any of several bivalent doubled substituted ammonium ions (as decamethonium or hexamethonium) in which the two quaternary nitrogen atoms are separated by a polymethylene chain
< methonium salts > |