“+ noun
Etymology: stere- + micrometer
: an apparatus attached to an optical device (as a telescope) for measuring small angles in the field of view by noting the projection on squares seen with the other and naked eye
“+ noun
Etymology: stere- + micrometer
: an apparatus attached to an optical device (as a telescope) for measuring small angles in the field of view by noting the projection on squares seen with the other and naked eye
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012