noun
Usage: usually capitalized S
Etymology: after Herman J. P. Sprengel
: an air pump in which exhaustion is produced by drops of mercury running down a narrow tube and trapping bubbles of gas between them
noun
Usage: usually capitalized S
Etymology: after Herman J. P. Sprengel
: an air pump in which exhaustion is produced by drops of mercury running down a narrow tube and trapping bubbles of gas between them
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012