Carbenium is a related term of germylium.
As nouns the difference between carbenium and germylium
is that carbenium is (organic chemistry|informal) any carbocation while germylium is (chemistry) any cation formed by a germanium atom with three bonds, having the general formula r3ge+.
carbenium
English
Noun
(en noun) (Often : carbenium ion)
(organic chemistry, informal) Any carbocation
Usage notes
* IUPAC recommends that carbonium is used instead.
References
* IUPAC
germylium
English
Noun
(head)
(chemistry) Any cation formed by a germanium atom with three bonds, having the general formula R3Ge+
Related terms
* carbenium
* silylium
* stannylium