| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ noun
Etymology: tetramethyl + ammonium
: the quaternary ammonium ion (CH 3 ) 4 N + containing four methyl groups — see tetramine 2
| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ noun
Etymology: tetramethyl + ammonium
: the quaternary ammonium ion (CH 3 ) 4 N + containing four methyl groups — see tetramine 2
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012