Kata bahasa Indonesia
English word
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
ROGET THESAURUS
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WORDNET DICTIONARY
Noun astigmatism has 2 senses
- astigmatism(n = noun.state) astigmia - (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people; is a kind of ametropia
- astigmatism(n = noun.state) astigmia - (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point; is a kind of condition, status
has particulars: keratectasia, keratoconus
Derived form adjective astigmatic1
Derived form adjective astigmatic1
Antonym: stigmatism
CIDE DICTIONARY
astigmatism, n. [Gr. 'a priv. + , , a prick of a pointed instrument, a spot, fr. to prick: cf. F. astigmatisme.].
A defect of the eye or of a lens, in consequence of which the rays derived from one point are not brought to a single focal point, thus causing imperfect images or indistinctness of vision. [1913 Webster]
" The term is applied especially to the defect causing images of lines having a certain direction to be indistinct, or imperfectly seen, while those of lines transverse to the former are distinct, or clearly seen."
[1913 Webster]
OXFORD DICTIONARY
astigmatism, n. a defect in the eye or in a lens resulting in distorted images, as light rays are prevented from meeting at a common focus.
Derivative
astigmatic adj.
Etymology
A-(1) + Gk stigma -matos point
ROGET THESAURUS
astigmatism
Dimsightedness
N dimsightedness, dim sight, dull sight half sight, short sight, near sight, long sight, double sight, astigmatic sight, failing sight, dimsightedness, purblindness, lippitude, myopia, presbyopia, confusion of vision, astigmatism, color blindness, chromato pseudo blepsis, Daltonism, nyctalopia, strabismus, strabism, squint, blearedness, day blindness, hemeralopia, nystagmus, xanthocyanopia, xanthopsia, cast in the eye, swivel eye, goggle-eyes, obliquity of vision, winking, nictitation, blinkard, albino, dizziness, swimming, scotomy, cataract, ophthalmia, blinker, screen, deceptio visus, refraction, distortion, illusion, false light, anamorphosis, virtual image, spectrum, mirage, looming, phasma, phantasm, phantasma, phantom, vision, specter, apparition, ghost, ignis fatuus, specter of the Brocken, magic mirror, magic lantern, mirror lens, dim-sighted, myopic, presbyopic, astigmatic, moon-eyed, mope-eyed, blear-eyed, goggle-eyed, gooseberry-eyed, one-eyed, blind of one eye, monoculous, half-blind, purblind, cock-eyed, dim-eyed, mole- eyed, dichroic, blind as a bat, winking.
See related words and definitions of word "astigmatism" in Indonesian