noun
Etymology: sling (III)
: a psychrometer that can be whirled in the air until the reading of the wet-bulb thermometer reaches a constant value
noun
Etymology: sling (III)
: a psychrometer that can be whirled in the air until the reading of the wet-bulb thermometer reaches a constant value
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012