astigmia 2
noundomain: state
Princeton WordNet [ver.3.1]
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EnglishDefinition
(optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
Hypernym
condition 1
noun
a state at a particular time
Domain_of_synset_-_TOPIC
optics 1
noun
the branch of physics that studies the physical properties of light
EnglishDerivationally related form
astigmatic 1
adjective
of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images
Member_of_this_domain_-_TOPIC
optics 1
noun
the branch of physics that studies the physical properties of light
