adj. Geol.
1. (of water) situated underground in the zone of saturation; ground water.
2 (of a volcanic eruption or explosion) caused by the heating and expansion of underground water.
Etymology: Gk phrear phreatos well
adj. Geol.
1. (of water) situated underground in the zone of saturation; ground water.
2 (of a volcanic eruption or explosion) caused by the heating and expansion of underground water.
Etymology: Gk phrear phreatos well
Oxford English vocab. Оксфордский английский словарь. 2012