See Also: astigmatism of oblique pencils(medicine)
false dawn(dictionary)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
dawn(1)(dictionary)
dawn(2)(dictionary)
Astigmatism(health)
astigmatism(dictionary)
astigmatism(encyclopedia)
Astigmatism(medicine)
astigmatism(dictionary)

astigmatism of oblique pencils (medicine) and false dawn (oh)


astigmatism of oblique pencils (medicine)


astigmatism of oblique pencils


An aberration occurring when a bundle of light rays strikes a refracting medium in some Other direction than parallel to the axis of the lens.


false dawn (oh)



n [C] formal
a situation in which something good seems likely to happen, but it does not
::The ceasefire turned out to be another false dawn.