Night Definition–noun | 1. | the period of darkness between sunset and sunrise. | | 2. | the beginning of this period; nightfall. | | 3. | the darkness of night; the dark. | | 4. | a condition or time of obscurity, ignorance, sinfulness, misfortune, etc.: the long night of European history known as the Dark Ages. | | 5. | (sometimes initial capital letter ) an evening used or set aside for a particular event, celebration, or other special purpose: a night on the town; poker night; New Year's Night. | –adjective | 6. | of or pertaining to night: the night hours. | | 7. | occurring, appearing, or seen at night: a night raid; a night bloomer. | | 8. | used or designed to be used at night: to take a night coach; the night entrance. | | 9. | working at night: night nurse; the night shift. | | 10. | active at night: the night feeders of the jungle. | —Idiom | 11. | night and day, unceasingly; continually: She worked night and day until the job was done. | |
From Dictionary
Vision Definition–noun | 1. | the act or power of sensing with the eyes; sight. | | 2. | the act or power of anticipating that which will or may come to be: prophetic vision; the vision of an entrepreneur. | | 3. | an experience in which a personage, thing, or event appears vividly or credibly to the mind, although not actually present, often under the influence of a divine or other agency: a heavenly messenger appearing in a vision. Compare hallucination (def. 1). | | 4. | something seen or otherwise perceived during such an experience: The vision revealed its message. | | 5. | a vivid, imaginative conception or anticipation: visions of wealth and glory. | | 6. | something seen; an object of sight. | | 7. | a scene, person, etc., of extraordinary beauty: The sky was a vision of red and pink. | –verb (used with object) | 9. | to envision: She tried to vision herself in a past century. | |
From Dictionary
Related topics from Britannicanight blindness
failure of the eye to adapt promptly from light to darkness that is characterized by a reduced ability to see in dim light or at night. It occurs as a symptom of numerous congenital and inherited ...
human aging
Visual acuity (ability to discriminate fine detail) is relatively poor in young children and improves up to young adulthood. From about the middle 20s to the 50s there is a slight decline in visual ...
eye disease
Defective vision under reduced illumination may reflect the congenital or hereditary condition known as retinitis pigmentosa or may be acquired as a result of severe deficiency of vitamin A.Wald, George
American biochemist who received (with Haldan K. Hartline of the United States and Ragnar Granit of Sweden) the Nobel Prize for Physiology or Medicine in 1967 for his work on the chemistry of vision.eye, human
At extremely low intensities of stimuli, when only rods are stimulated, the retina shows a variable sensitivity to light according to its wavelength, being most sensitive at about 5000 angstroms, the ...
retina
layer of nervous tissue that covers the inside of the back two-thirds of the eyeball, in which stimulation by light occurs, initiating the sensation of vision. The retina is actually an extension of ...
Zechariah, Book of
the 11th of 12 Old Testament books that bear the names of the Minor Prophets, collected in the Jewish canon in one book, The Twelve. Only chapters 1-8 contain the prophecies of Zechariah; chapters ...
colour
Two light waves of the same wavelength can interact under appropriate circumstances so as to reinforce each other if they are in phase or to cancel each other if they are out of phase. If a beam of ...
Buddha
His companions remained convinced of the efficacy of asceticism and abandoned the prince. Now without companions or a teacher, the prince vowed that he would sit under a tree and not rise until he ...
spectroscopy
The principal detection methods used in optical spectroscopy are photographic (e.g., film), photoemissive (photomultipliers), and photoconductive (semiconductor). Prior to about 1940, most spectra ...
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