subglacial
adjective
sub·gla·cial ˌsəb-ˈglā-shəl 
: of or relating to the bottom of a glacier or the area immediately underlying a glacier
subglacially
ˌsəb-ˈglā-shə-lē
adverb 
Example Sentences
Recent Examples on the Web This is significant because subglacial lakes in this area are two to 15 meters (6.6 to 49 feet) deep. 
Katie Hunt, CNN, 5 May 2022 These eyes in the sky also look for ponds of surface meltwater, conduits that carry seasonal drainage and subglacial lakes. Ashley Strickland, CNN, 19 Apr. 2022 There are also the many scientific breakthroughs made by women in the Antarctic, from discovering a series of active subglacial lakes to initiating the use of autonomous ocean gliders to take ocean measurements in tough-to-reach waters. Laura Kiniry, Smithsonian Magazine, 25 Mar. 2022 Olivas points out that microbes could be living throughout the large subglacial lake because of the high levels of life-sustaining compounds. David Kindy, Smithsonian Magazine, 23 July 2021 In Iceland, after the subglacial volcano Katla has been erupting constantly for a whole year, Gríma is still looking for her missing sister who disappeared the day the eruption started. Jacob Siegal, BGR, 13 June 2021 Getting a comparable subglacial sample today using modern drilling technology would have been prohibitively expensive. Gemma Tarlach, Wired, 20 Mar. 2021 So far Fagradalsfjall’s eruption has not caused the kind of global disruption to air travel seen in 2010, when the subglacial volcano Eyjafjallajökull spewed volcanic ash into the high atmosphere. Robinson Meyer, The Atlantic, 23 Mar. 2021 The core was subglacial sediment and rock, taken from below a mile of ice in 1966 at Camp Century, an American research base in Greenland that had served as cover for a secret—and failed—military project. Star Tribune, 21 Mar. 2021 See More
Katie Hunt, CNN, 5 May 2022 These eyes in the sky also look for ponds of surface meltwater, conduits that carry seasonal drainage and subglacial lakes. Ashley Strickland, CNN, 19 Apr. 2022 There are also the many scientific breakthroughs made by women in the Antarctic, from discovering a series of active subglacial lakes to initiating the use of autonomous ocean gliders to take ocean measurements in tough-to-reach waters. Laura Kiniry, Smithsonian Magazine, 25 Mar. 2022 Olivas points out that microbes could be living throughout the large subglacial lake because of the high levels of life-sustaining compounds. David Kindy, Smithsonian Magazine, 23 July 2021 In Iceland, after the subglacial volcano Katla has been erupting constantly for a whole year, Gríma is still looking for her missing sister who disappeared the day the eruption started. Jacob Siegal, BGR, 13 June 2021 Getting a comparable subglacial sample today using modern drilling technology would have been prohibitively expensive. Gemma Tarlach, Wired, 20 Mar. 2021 So far Fagradalsfjall’s eruption has not caused the kind of global disruption to air travel seen in 2010, when the subglacial volcano Eyjafjallajökull spewed volcanic ash into the high atmosphere. Robinson Meyer, The Atlantic, 23 Mar. 2021 The core was subglacial sediment and rock, taken from below a mile of ice in 1966 at Camp Century, an American research base in Greenland that had served as cover for a secret—and failed—military project. Star Tribune, 21 Mar. 2021 See More Word History
First Known Use
1820, in the meaning defined above