See Also: entrance pupil(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
entrance(2)(dictionary)
entrance(1)(dictionary)
Entrance(medicine)
entrance 1, noun(dictionary)
entrance block(medicine)
entrance 2, verb(dictionary)
Entrance Fee - Horse Racing(gambling)
Service Entrance Deli(tourism)

entrance pupil (medicine)


entrance pupil
<microscopy> The apparent size of the limiting aperture of a lens or lens system (properly that of the diaphragm), as seen from the object plane. This can shift and become a complex matter in some circumstances. In a properly set up microscope system it should be that of the substage iris diaphragm.