“+ noun
Etymology: ultra- + micrometer
: an extremely sensitive micrometer (as one capable of measuring to one millionth of an inch or less) frequently utilizing a variable capacitance that controls the frequency of an oscillator
“+ noun
Etymology: ultra- + micrometer
: an extremely sensitive micrometer (as one capable of measuring to one millionth of an inch or less) frequently utilizing a variable capacitance that controls the frequency of an oscillator
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012