noun
parasitic volcano; parasite volcano
A smaller volcanic cone formed on the flank of a larger volcano, fed by the same magma system.
富士山の山腹には多くの寄生火山がある。
There are many parasitic volcanoes on the slopes of Mount Fuji.
Synonym also meaning 'parasitic volcano'; 寄生火山 is the more common term in Japanese geology.
Compound of 寄生 (parasitic) and 火山 (volcano), directly calqued from English 'parasitic volcano'.