a vent in the earth's surface through which escaping gas and vapor issue, causing mud to boil and occasionally to overflow, forming a conical mound around the vent.
[ 1810-20 ]
a vent in the earth's surface through which escaping gas and vapor issue, causing mud to boil and occasionally to overflow, forming a conical mound around the vent.
[ 1810-20 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012