visual display unit
VDU | (British) British term for video display |
appearance
visual aspect | outward or visible aspect of a person or thing |
| visual property | an attribute of vision |
violet
reddish blue | a variable color that lies beyond blue in the spectrum |
| visual range | distance at which a given standard object can be seen with the unaided eye |
| visual system | the sensory system for vision |
| visual cell | one of the cells of the retina that is sensitive to light |
visual area
visual cortex | the cortical area that receives information from the lateral geniculate body of the thalamus |
striate cortex
striate area
first visual area
area of Brodmann
Brodmann's are | the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision |
sight
vision visual sense
visual modality | the ability to see, the visual faculty |
acuity visual acuity
sharp-sightedness | sharpness of vision, the visual ability to resolve fine detail (usually measured by a Snellen chart) |
visual perception
beholding
seeing | perception by means of the eyes |
| visual space | the visual perception of space |
| vision visual sensation | the perceptual experience of seeing, the runners emerged from the trees into his clear vision, he had a visual sensation of intense light |
visual percept
visual image | a percept that arises from the eyes, an image in the visual system |
visual field
field of vision
field of regard | all of the points of the physical environment that can be perceived by a stable eye at a given moment |
visual image visualization
visualisation | a mental image that is similar to a visual perception |
sight gag
visual joke | a joke whose effect is achieved by visual means rather than by speech (as in a movie) |
| visual communication | communication that relies on vision |
| visual signal | a signal that involves visual communication |
shy person
shrinking violet | someone who shrinks from familiarity with others |
damask violet
Dame's violet
sweet rocket
Hesperis matronalis | long cultivated herb having flowers whose scent is more pronounced in the evening, naturalized throughout Europe to Siberia and into North America |
water violet
Hottonia palustris | featherfoil of Europe and western Asia having submerged and floating leaves and violet flowers |
Persian violet
Exacum affine | perennial cultivated especially as a houseplant for its fragrant bluish to dark lavender flowers |
marsh gentian
calathian violet
Gentiana pneumonanthe | perennial Eurasian gentian with sky-blue funnel-shaped flowers of damp open heaths |
Violaceae
family Violaceae
violet family | a family of order Parietales including the genera Viola, Hybanthus, Hymenanthera, Melicytus |
| violet | any of numerous low-growing violas with small flowers |
American dog violet
Viola conspersa | violet of eastern North America having pale violet to white flowers |
sweet white violet
white violet
woodland white violet
Viola blanda | short-stemmed violet of eastern North America having fragrant purple-veined white flowers |
Canada violet
tall white violet
white violet Viola canadensis | tall North American perennial with heart-shaped leaves and white flowers with purple streaks |
dog violet
heath violet
Viola canina | Old World leafy-stemmed blue-flowered violet |
horned violet
tufted pansy
Viola cornuta | European viola with an unusually long corolla spur |
two-eyed violet
heartsease Viola ocellata | violet of Pacific coast of North America having white petals tinged with yellow and deep violet |
sweet violet
garden violet
English violet
Viola odorata | European violet typically having purple to white flowers, widely naturalized |
bird's-foot violet
pansy violet
Johnny-jump-up wood violet Viola pedata | common violet of the eastern United States with large pale blue or purple flowers resembling pansies |
downy yellow violet
Viola pubescens | violet of eastern North America having softly pubescent leaves and stems and clear yellow flowers with brown-purple veins |
long-spurred violet
Viola rostrata | violet of eastern North America having lilac-purple flowers with a long slender spur |
pale violet
striped violet
cream violet
Viola striata | leafy-stemmed violet of eastern North America having large white or creamy flowers faintly marked with purple |
hedge violet
wood violet Viola sylvatica
Viola reichenbachiana | common European violet that grows in woods and hedgerows |
dogtooth violet
dogtooth
dog's-tooth violet | perennial woodland spring-flowering plant, widely cultivated |
white dogtooth violet
white dog's-tooth violet
blonde lilian
Erythronium albidum | North American dogtooth having solitary white flowers with yellow centers and blue or pink exteriors |
violet wood sorrel
Oxalis violacea | perennial herb of eastern North America with palmately compound leaves and usually rose-purple flowers |
violet suksdorfia
Suksdorfia violaceae | slender delicate plant with wide roundish deeply lobed leaves and deep pink to violet funnel-shaped flowers, British Columbia to northern Oregon and west to Idaho and Montana |
African violet
Saintpaulia ionantha | tropical African plant cultivated as a houseplant for its violet or white or pink flowers |
bush violet
browallia | any of several herbs of the genus Browallia cultivated for their blue or violet or white flowers |
violet-flowered petunia
Petunia integrifolia | herb or small shrublet having solitary violet to roseed flowers |
visual aphasia
alexia
word blindness | inability to perceive written words |
| visual agnosia | inability to recognize or interpret objects in the visual field |
| visual hallucination | illusory visual perception |
visual impairment
visual defect
vision defect
visual disorder | impairment of the sense of sight |