Adjective
Relating to fresh water, typically a lake or swamp; freshwater
(geology) deposited in a lake or swamp
Source: en.wiktionary.orgOn August 21, 1986, another limnic eruption at Lake Nyos killed as many as 1,800 people and 3,500 livestock. Source: Internet
To date, only two limnic eruptions have been observed and recorded. Source: Internet